2019 Bridge 27A34 completed2019 ROUTINE
BRIDGE INSPECTION REPORT
BRIDGE # 27A34
81 (ENCHANTED LANE) over CHANNEL
DISTRICT: Metro
STATE: Minnesota
Date of Inspection:
Equipment Used:
COUNTY: Hennepin
08/15/2019
Owner: City or Municipal Highway Agency
Inspected By: Flittie, Daniel
Report Written By: Daniel Flittie
Report Reviewed By: Craig Alberg
Final Report Date: 10/02/2019 1
CITY /TOWNSHIP: Shorewood
Table of Contents
SECTION
COVER
ELEMENTS
PICTURES
PAGE
BRIDGE 27A34 RATING (2019) 29
Minnesota Structure Inventory Report
Bridge ID: 27A34 81(ENCHANTED LANE) over CHANNEL
+ GENERAL +
+ ROADWAY ON BRIDGE +
+ INSPECTION +
Agency Br. No. Crew
Road Name MUN 81
Structurally Deficient N
District 05 Maint. Area
Functional Class. 19 - Urban - Local
Functionally Obsolete N
County 027 - Hennepin
ADT 260 YEAR 1988
Sufficiency Rating 74.6
City Shorewood
HCADT ADTT %
Last Routine Insp Date 08/15/2019
Township
NHS 0 - Structure /Route is NOT on NHS
Routine Insp Frequency 24
Desc. Loc. TO SHADY ISLAND
Route Sys /Nbr 10 - MUN / 81
Inspector Name Flittie, Daniel
Sect., Twp., Range 30 117N - 23W
Ref. Point (TIS) 000 +00.000
Status A - Open
Latitude 44.7758
Detour Length 99
Longitude 93.7284
Lanes 2 Lanes ON Bridge
+ NBI CONDITION RATINGS +
Deck 8
Custodian 04 - City or Municipal Highway Agency
Control Section (TH Only)
Owner 04 - City or Municipal Highway Agency
Function 1 - MAINLINE
Superstructure 8
Type 2 - 2 -way traffic
Substructure 8
Year Built 1997
Bridge Match ID 1
Channel 8
Date Opened to Traffic
Roadway Key Route On Structure
Culvert N
MN Year Remodeled
FHWA Year Reconstructed
+ RDWY DIMENSIONS ON BRIDGE +
+ NBI APPRAISAL RATINGS +
Bridge Plan Location 1-CENTRAL
If Divided: NB -EB SB -WB
Structure Evaluation 8
Potential ABC 2 - N/A
Roadway Width 20.00 ft ft
Deck Geometry 4
Vertical Clearance ft ft
Max. Vert. Clear. ft ft
Horizontal Clear. ft ft
Underclearances N
Waterway Adequacy 8
Approach Alignment 7
+ STRUCTURE +
Service On 1 -Highway
Service Under 5 - Waterway
Appr. Surface Width 20.0 ft
+ SAFETY FEATURES +
Main Span Type 7 - Timber
Bridge Roadway Width 20.0 ft
09 - Slab Span
Median Width On Bridge ft
Bridge Railing 1 -MEETS STANDARDS
Main Span Detail
GR Transition 0 - SUBSTANDARD
Appr. Span Type
Appr. Guardrail 1 -MEETS STANDARDS
+ MISC. BRIDGE DATA +
GR Termini 0 - SUBSTANDARD
Structure Flared 0 - No flare
Appr. Span Detail
Parallel Structure N - No parallel structure
+ SPECIAL INSPECTIONS +
Skew 0
Field Conn. ID
Culvert Type
Cantilever ID
Y/N Freq Date
Barrel Length
Frac. Critical N
Number of Spans
Foundations (Material /Type)
Underwater Y 60 09/07/2016
MAIN: 3 APPR: 0 TOTAL:
Abutment 2 - TIMBER 4 - PILE BENT
Pinned Asbly. N
Main Span Length 20.0 ft
Pier 2 - TIMBER 4 - PILE BENT
Structure Length 52.0 ft
Historic Status 5 - Not eligible
+ WATERWAY +
Deck Width (Out -to -Out) 24.0 ft
On - Off System 0 - OFF
Drainage Area (sq mi)
Deck Material 8 - Wood or Timber
Waterway Opening (sq ft) 200
Deck Installation Year
Navigation Control 0 - No nay. control on waterway
+ PAINT +
Year Painted
Wear Surf Type 6 - Bituminous
Pier Protection
Wear Surf Install Year
Painted Area sq ft
Nay. Clr. (ft) Vert. 0.0 Horiz. 0.0
Wear Course /Fill Depth 0.29 ft
Primer Type
Nay. Vert. Lift Bridge Clear. (ft)
Deck Membrane 0 - None
Finish Type
MN Scour Code I - LOW RISK
Deck Rebars N - Not Applicable (no deck)
Scour Evaluation Year 2001
Structure Area (Out -to -Out) 1248 sq ft
+ BRIDGE SIGNS +
Posted Load 0 - Not Required
+ CAPACITY RATINGS +
Roadway Area (Curb -to -Curb) 1044 sq ft
Sidewalk Width - L/R 0.00 0.00 ft
Traffic 0 - Not Required
Design Load 9 - HS 25 (OR GREATER)
Curb Height - L/R 0.00 0.00 ft
Horizontal 1 - Object Markers
Operating Rating 2 - HS TRUCK 32.6
Rail Codes - L/R 06 06
Vertical N - Not Applicable
Inventory Rating 2 - HS TRUCK 23.7
Posting VEH: SEMI: DBL:
Rating Date 07/12/2019
Overweight Permit Codes
A:1 B:1 C:1
MINNESOTA BRIDGE INSPECTION REPORT
10/02/2019
BRIDGE 27A34 81 (ENCHANTED LANE) OVER CHANNEL
County: Hennepin Location: TO SHADY ISLAND
City: Shorewood Route: 10 - MUN 81 Ref. Pt
Township: Control Section:
Section: 30 Township: 117N Range: 23W Maint. Area:
Span Type: 7 - Wood or Timber 1 - Slab Local Agency Bridge Nbr.:
List:
Length: 52.0 ft.
000 +00.000 Deck Width: 24.0 ft.
Rdwy. Area/ Pct. Unsnd: 1044 sq. ft. / %
Paint Area/ Pct. Unsnd: sq. ft. / %
Culvert: N/A
Postings:
NBI Deck: 8 Super: 8 Sub: 8 Chan: 8 Culv: N
Open, Posted, Closed: A - Open
MN Scour Code: I - LOW RISK
Appraisal Ratings - Approach: 7 Waterway: 8
Required Bridge Signs - Load Posting: 0 - Not Required Traffic: 0 - Not Required
Horizntal: 1 - Object Markers Vertical: N - Not Applicable
ELEM
NBR ELEMENT NAME
54 Timber Slab
REPORT TYPE INSP. DATE QUANTITY
Unofficial Structurally Deficient N
Unofficial Functionally Obsolete N
Unofficial Sufficiency Rating 74.6
QTY QTY QTY QTY
CS 1 CS 2 CS 3 CS 4
Routine 08/15/2019 1152 SF 1152 0 0 0
Routine 08/29/2017 1152 SF 1152 0 0 0
Notes: [2016] Migrator assumed CS1.
[08/29/17] OTO width = 22' -2 ". OTO bridge field measures 52' -0 ". Slab Area = 1152 sf. Bottom of slab very clean, all spans, no indications of
distress. 4x10 approach span, 4x12 main span.
[08/15/19] MnDOT to update structure qty per calcs above, difference likely due to rounding (1152 SF). Timber slab covered by bituminous
wear course. Underside of deck/super very clean and dry, no signs of distress, no CS change. New load rating, see attached; no load posting
requirements.
510 - Wearing Surfaces
Routine 08/15/2019 1053 SF 1045 0
Routine 08/29/2017 1053 SF 1049 4 0 0
Notes: [08/20/15] Roadway field measures 20' -3" + (2) 11" rub rails, OTO width = 22' -1 ". OTO bridge field measures 52' -0 ". Slab Area = 1148
sf.
[08/29/17] Recent bituminous /gravel wear course placed across approach road and bridge - no significant depth change; good condition.
[08/29/17] Roadway field measures 20' -3 ", OTO bridge 52' -0 ". Rdwy Area = 1053 sf. Typical full width transverse cracks in wear course over
piers. Say (2 piers) * (20.25') * (1"/12 crack width) => say 4 SF at CS -2, balance at CS -1.
[08/15/19] Bit. W.C. developing long. and transv. cracks within span; all cracks unsealed. -30 LF cracks @ 1", say 4 SF; say half in CS -3 (up
to 1/8" and unsealed) and CS -4 for past 1/8" width (4 SF).
216 Timber Abutment Routine 08/15/2019 92 LF 92 0 0 0
Routine 08/29/2017 92 LF 92 0 0 0
Notes: [2016] Migrator added 40 LF to abutment quantity to account for wingwalls (CS1:40 CS2:0 CS3:0 CS4:0).
[08/20/15] Slight quantity change for field measured dimensions, no condition state change.
[08/29/17] Field measure 2' OH (N) + (2) 8' WW + 6' OH (S) + 22' OTO = 46 LF * 2 = 92 LF; all CS -1
[08/15/19] Well armored, creosote still effective. Minor weathering /checking /splitting throughout; no CS change.
Wingwall notes:
[08/20/15] No change.
228 Timber Pile Routine 08/15/2019 36 EA 36 0 0 0
Routine 08/29/2017 36 EA 36 0 0 0
Notes: [08/20/15] Remove timber column quantity, coded incorrectly. 10 piles at each abutment/ww + 8 piles at each pier, total = 36, all in
Condition State 1.
[08/29/17] Steel shims under the timber cap of a few piles; all piles in contact with cap or shims; no CS change.
[08/15/19] Piles in good condition, some minor outside cracking of Pile 3 at Pier 1. No CS change.
235 Timber Pier Cap Routine 08/15/2019 120 LF 120 0 0 0
Routine 08/29/2017 120 LF 120 0 0 0
Notes: [08/20/15] Slight quantity change for field measured dimensions, no condition state change.
[08/29/17] 4 @ 30' -2" = 120 LF; all CS -1. Minor weathering on the exposed overhangs.
[08/15/19] Creosote still effective. Minor weathering /checking /splitting throughout; no CS change.
3
BRIDGE 27A34 81 (ENCHANTED LANE) OVER CHANNEL
ELEM
QTY
QTY
QTY
QTY
NBR
ELEMENT NAME REPORT TYPE INSP. DATE QUANTITY CS 1
CS 2
CS 3
CS 4
332
Timber Bridge Railing Routine 08/15/2019 104 LF 104
0
0
0
Routine 08/29/2017 104 LF 104
0
0
0
Notes: [08/20/15] No change.
[08/29/17] No change.
[08/15/19] Creosote beginning to 'bleach' out of rail, but still effective; timber rub -rail and scupper in good condition.
Minor weathering
throughout; no CS change.
800
Critical Deficiencies or Safety Hazards Routine 08/15/2019 1 EA 1
0
0
0
Routine 08/29/2017 1 EA 1
0
0
0
Notes: NO CRITICAL FINDINGS OBSERVED DURING THE LAST INSPECTION.
[08/20/15] No change.
[08/29/17] No change.
[08/15/19] No change.
822
Bituminous Approach Roadway Routine 08/15/2019 2 EA 2
0
0
0
Routine 08/29/2017 2 EA 2
0
0
0
Notes: [08/20/15] No change.
[08/29/17] Recent bituminous /gravel wear course placed across approach road; good condition.
[08/15/19] Bit. W.C. developing long. and transv. cracks on both approaches. Possible settlement behind south abutment; noticeable 'bump'
over south abutment while driving over bridge. Say CS -1 at this time for both approach roadways.
891
Other Bridge Signing Routine 08/15/2019 1 EA 0
0
1
0
Routine 08/29/2017 1 EA 0
0
1
0
Notes: [08/20/15] Element added. All object markers accounted for and visible. Vegetation growth at SW corner of abutment growing up
around object marker.
[08/29/17] Heavy vegetation at SW and SE corners, beginning to obscure signs.
[08/29/17] Gas marker on east end of bridge, totally obscured by vegetation; no marker visible on the west end; downgrade
to CS -3 for
vegetation removal around object marker sign.
[08/15/19] No change, heavy vegetation still covering signs.
892
Slopes & Slope Protection Routine 08/15/2019 1 EA 1
0
0
0
Routine 08/29/2017 1 EA 1
0
0
0
Notes: [08/20/15] No change, channel slopes well protected.
[08/29/17] No change.
[08/15/19] No change.
893
Guardrail Routine 08/15/2019 1 EA 1
0
0
0
Routine 08/29/2017 1 EA 1
0
0
0
Notes: [08/20/15] No change.
[08/29/17] No change.
[08/15/19] Metal W -beam, timber post. No damage along any of the four runs of GR.
894
Deck & Approach Drainage Routine 08/15/2019 1 EA 1
0
0
0
Routine 08/29/2017 1 EA 1
0
0
0
Notes: [08/20/15] No change, deck scuppers open, free of debris.
[08/29/17] No change.
[08/15/19] No change, no evidence of water on deck or approaches.
899
Miscellaneous Items Routine 08/15/2019 1 EA 0
0
1
0
Routine 08/29/2017 1 EA 0
0
1
0
Notes: [08/20/15] Element added. (3) separate conduits on the south side of the bridge. (1) 3" gas line, marked at east end
of bridge; (1) 16"
conduit (insulated water main ?); & (1) 4" conduit (galvanized ?).
[08/29/17] Gas marker on east end of bridge, totally obscured by vegetation; no marker visible on the west end; downgrade
to CS -3 for
vegetation removal around this and object marker sign.
[08/15/19] No change, heavy vegetation still covering signs.
0
BRIDGE 27A34 81 (ENCHANTED LANE) OVER CHANNEL
ELEM QTY QTY QTY QTY
NBR ELEMENT NAME REPORT TYPE INSP. DATE QUANTITY CS 1 CS 2 CS 3 CS 4
900 Protected Species Routine 08/15/2019 1 EA 0 0
Routine 08/29/2017 1 EA 0 1 0 0
Notes: Use this element to track the presence of protected species living on this structure.
[08/29/17] Swallow nests on bridge, CS -2.
[08/15/19] Now CS -3 for swallows.
885 Scour Routine 08/15/2019 1 EA 1 0 0 0
Routine 08/29/2017 1 EA 1 0 0 0
Notes: [08/29/17] No scour evident, channel armor in place. Underwater inspection performed 09/07/16.
[08/15/19] No scour evident, channel armor in place. Could not probe in main span, too deep, past chest wader depth; approach spans ok. No
CS change.
855 Secondary Members (Superstructure) Routine 08/15/2019 1 EA 1 0 0 0
Routine 08/29/2017 1 EA 1 0 0 0
Notes: [08/29/17] Member added for spreader beams. Deleted Floorbeam (Item 156). Member is secondary, acts as a diaphragm, not a
primary member which a floor beam is, disagree with BSIPM B.3.3.4. Notes below from previous inspection. Item is a "1" qty, all spreader
beams in good condition, CS -1.
[08/15/19] One each in each approach span, two in the main span. Qty and CS remain as -is, all tight, no loose hardware.
------------------------
[08/20/15] Element added. 12x6 timber section; (1) stiffener beam in each approach span & (2) stiffener beams in the main span. Same
quantity as timber cap, 124 LF, all in Condition State 1
895 Sidewalk, Curb, & Median Routine 08/15/2019 1 EA 1 0 0 0
Routine 08/29/2017 1 EA 1 0 0 0
Notes: [08/29/17] Member added for timber curb, part of the timber rail system. Good condition throughout; CS -1.
[08/15/19] No change.
Notes: [08/15/19] Add element. Timber cross diaphragms on each side of each pier. All good condition, CS -1.
General Notes: [08/20/15] Inspection by WSB.
[08/20/15] 40" clearance to bottom of spreader beam in Span 2.
[08/20/15] 4' water depth in channel under Span 2.
[08/20/15] Removed element 206.
[08/20/15] Added element 228.
[08/20/15] Added element 415.
[08/20/15] Added element 981.
[08/20/15] Vegetation growing at SW corner of bridge, nearly obstructing object markers, should be removed.
[08/29/17] Inspection by WSB & Associates. Vegetation growing at SW & SE corner of bridge, nearly obstructing object
markers, should be removed.
[08/29/17] 2011 load rating does not include SHV load ratings. See BSIPM A.8.2: "Section 15.6 of the MnDOT LRFD Bridge
Design Manual states that a new bridge load rating should be calculated whenever change occurs that would sufficiently
change the rating. The most commonly encountered types of changes are: A change in the laws regulating truck weights."
Owner should consider load rating bridge with updated SHV truck loads.
[08/15/19] Inspection by WSB. Sun & 75F. Owner should remove vegetation around signing at all four corners of bridge, and
gas signs surrounding bridge. New load rating, see attached, no load posting requirements.
58. Deck NBI: [08/20/15] Timber slab covered by 3.5" bituminous wear course; no change. Measures 2" at the gutter line, 5" at CL bridge.
[08/29/17] Recent bituminous /gravel wear course placed across approach road and bridge - no significant depth change.
[08/15/19] Underside of deck/super very clean and dry, no signs of distress, no NBI change.
36A. Brdg Railings NBI: [08/20/15] Change to substandard.
[08/29/15] Barrier is standard for — 40 mph.
[08/15/19] No change.
36B. Transitions NBI: [08/20/15] No change.
[08/29/15] Change to substandard.
[08/15/19] No change.
36C. Appr Guardrail NBI: [08/20/15] No change.
[08/29/15] No change.
[08/15/19] No change.
36D. Appr Guardrail [08/20/15] Change to substandard. Approach guardrail ends are turned down.
Terminal NBI: [08/29/15] No change.
[08/15/19] No change.
5
BRIDGE 27A34 81 (ENCHANTED LANE) OVER CHANNEL
ELEM QTY QTY QTY QTY
NBR ELEMENT NAME REPORT TYPE INSP. DATE QUANTITY CS 1 CS 2 CS 3 CS 4
59. Superstructure NBI: [08/20/15] Timber slab covered by 3.5" bituminous wear course; bottom of timber slab stringers in very good condition in all
spans, no change.
[08/29/17] 4x10 approach span, 4x12 main span.
[08/15/19] Underside of deck/super very clean and dry, no signs of distress, no NBI change. New load rating, see attached.
60. Substructure NBI: [08/20/15] No change.
[08/29/17] No change.
[08/15/19] Some very minor weathering /checking /cracking throughout caps and piles, no NBI change.
61. Channel NBI: [08/20/15] No change. 40" freeboard to Span 2 spreader beam.
[08/29/17] Downgrade to 8, bridge no longer in 'new' condition.
[08/15/19] Well armored, no bank erosion, very good condition, no NBI change
62. Culvert NBI: [08/20/15] No change.
[08/29/17] No change.
[08/15/19] Bridge, no culvert (N /A), no NBI change
71. Waterway Adeq NBI: [08/20/15] No change.
[08/29/17] No indications of high -water anywhere near low bridge member.
[08/15/19] Reduce to 8 per MnDOT direction. No highwater marks any where near superstructure.
72. Appr Roadway [08/20/15] No change.
Alignment NBI: [08/29/17] No change.
[08/15/19] Minor slow down due to horizontal curves on both ends of bridge. Downgrade to 7.
Daniel Flittie
Inspector's Signature
9
Craig Alberg
Reviewer's Signature
Pictures
Photo 1 - South approach.
F
Photo 2 - North approach.
7
Pictures
Photo 3 - Channel, west.
Photo 4 - Channel, east.
Pictures
Photo 5 - Channel, east.
Photo 6 - South approach.
E
Pictures
i�
Photo 7 - South approach, bit. long. and transv. cracking. & #10;
� s
Photo 8 - South abutment, transv. crack.
10
Pictures
I"
Photo 9 - Pier 1, transv. crack.
Photo 10 - Pier 2, transv. crack.
11
Pictures
Photo 11 - North abutment, transv. crack.
Photo 12 - North approach, bit. w.c..
`V
Pictures
•
t,%
Photo 13 - North approach, bit. w.c..
Photo 14 - Top of deck, bit. w.c. Unsealed long and transv. cracks throughout.
13
Pictures
Photo 15 - Timber railing and timber curb system, typ.
Photo 16 - NE GR end.
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7
Pictures
Photo 17 - NW GR end, turn down.
pp� IL
Photo 18 - East elevation.
15
Pictures
Photo 19 - Three utilities on south side of bridge.
Photo 20 - NE corner, heavy vegetation obscuring signs.
16
Pictures
Photo 21 - NE abutment end, typical utility tie down.
-j
Photo 22 - North abutment. Well armored, good condition.
17
I
7
Pictures
or .4N
Photo 23 - NE abutment corner, utilities at top of bridge.
Photo 24 - NW WW.
IN
Pictures
Photo 25 - North face, pier 2.
Photo 26 - Btm. timber slab, Span 3.
19
Pictures
! l Y
-.
UUM II 12.0?
{
Photo 27 - Btm. timber slab, Span 3 w/ timber spreader beam.
Photo 28 - North face, Pier 1.
20
Pictures
r �
Photo 29 - Underside of deck, Span 2.
Photo 30 - Utilities, east side of bridge.
21
Pictures
Photo 31 - West elevation.
Photo 32 - South abutment, well armored.
Wj
Pictures
*ti _
Photo 33 - South face, Pier 1.
-1.7. ., •v lil.
5•
ti F
�4 t
Photo 34 - Btm. timber slab, Span 1, w/ timber spreader beam. Swallow nest on beam.
23
Pictures
Photo 35 - SW WW.
Photo 36 - Steel shims, top of Piles 2 -3, Pier 1.
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}
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Pictures
1'L /
Photo 37 - Pier 1, Pile 3, minor outside splitting.
Photo 38 - South face, Pier 2.
25
Pictures
. 7
y
1 V
Photo 39 - Btm slab, Span 2, with timber spreader beams.
x�
Photo 40 - SE WW.
26
Pictures
Photo 41 - SE corner near end of GR. Gas sign totally obscured, no parking sign nearly obscured.
Photo 42 - SE GR end, turn down style.
M
Pictures
Photo 43 - Typical W beam GR condition.
N -V
FORM RC -CL WDOT BRIDGE RATING AND LOAD POSTING REPORT
Revised Aug. 2018 FOR COUNTY AND LOCAL AGENCIES
Over ® Bridge No. 27A34
Hwy. No. MUN 81 (Enchanted Ln) Under❑ Channel _.
Year Built 1997 Year Remodeled
Replaces Br.
Type 709 County _Hennepin Ref. Pt.
Description 3-Span Timber Slab Bridge. 20' -0" Roadway Width. No Skew. 3 1/2" Thick Bituminous Wearing Surface
_.
Timber Curb, Scuppers, Rail, and Posts at Each Edge.
Location Sect. 30 - Twp 117N Rg. 23W - To Shady Island
Data for Basis of Report (Check all that apply) Y) NISI Condition Ratings
❑
Bridge Inventory File
.
Deck ---------
®
Previous Bridge Rating and Load Posting Report
Superstructure
g
El
Bridge Plans
Substructure
$
❑ New ❑ Overlay
Culvert
N
El Repair /Reconstruction
HCAADT ---
26 -____�
❑ Other Dead Load Modifications
°-
®
Bridge Inspected by Tim Moe & Andrew Muer�
Date 7/18/18
❑ Damaged Component
_
❑ Deteriorated Component—""--
-
Types of Analysis: _
❑ Manual ® AASHTOWare BrR, V.6_8
❑ Computer* ❑ Other*
Method of Rating (Check appropriate box)
❑ Load Factor (LFR) ❑ Assigned LFR Design Load HS -25
® Allowable Stress ASR
( ) ❑Assigned LRFR
❑ Load & Resistance Factor (LRFR) ❑ Load Testing Design Method ASD
❑ Field Eval. /Doc. Engineering Judgment
Summary of Rating and Load Posting Analysis
Load Posting Required ❑
.. Not Required ® Bridge Rating
59........ TONS
HS
R12 -1a ❑
....__ Inventory Operating
R12 -5a ❑
R12 -5 FE] M3 M3S2 -40 M3S3 RF ❑® 23.7 RF ❑® 32.6
R12 -X11 ❑ .45
__-
R11-2a ❑ BRIDGE CLOSED
I hereby certify that this report was prepared by me or k
Engineer under the laws of the State of Minnesota.
Signature:
(Typed or Printed) Name: Kent A. Rohr
(Typed or Printed) Employed by ( ❑Agency / ®Firm):
My signature bolo ' d'�
Overweight Permit Codes
A l B 1 C
my direct supervision and that I am a duly Licensed Professional
Date:
License No. 21179
Widseth Smith Nolting & Associates, Inc.
w m i%.C3 s that I have read and fu ag eed with the load rating report. _
Program Administrator's Signature: � 09/11/19
Date:
FORM RD -CL BRIOGE RATING DETAILS
Revised Apr. 2018
Bridge Type 709
Rating method ASR
Roadway Width 20' -V"
❑ Curved ❑ Tapered
Beam Spacing _
® Live Load Distribuban Fad)dr
Single Ser± Bekm Muldple see below
❑ FinitelGrid Elemerit Analysis —
Brldge No. 27A34
Deslgn Load: HS -25
Inventory Rating; Fly 23.7
Operating Rating: Fly 316
Rated AJM Checked DAN
Date 6/1412019
Sheet of
3-5` gltumwr.xn *caring Suriaee aiop a 10' (8pan 1 & 3} and 1:L?'
{Spai7 2F Thick Timber $lab
1 V -V 1 24' -Q- 1 15 -e
Emergenw, Ratinq Spam Lorabon
Vehidiez Factor Pier Limit State
EV2 1,363 1 0,5 Ultimate Moment
EV3 0.981 1 0,6 Uldmate Moment _
1 Ekwtion may be on bade or another sheet if it wort Frt here,
2 Choose from: 9eM a or ultimates shear or moment
3 For information only
30
Note:Kornments
LLDF 0.3
LLDF = 0.3
LLDF = 0.3429
LLDF = 0.3479
LLDF = 0.3429
LLDF = 0.3429
LLDIF = 0.3429
LLDF = 0 -3429
LLDF a 0.3429
WrbWCornrrerits
LL.RF = 0.3429
LLDF = 0.3429
Span 1 I Spen 2 Span 3
BEAM ELEVATION �
Show span lengths, sdumm/ beam depths,
Truck
F r
Spa
Location
Umlt 5'kate 2
HS 20 Inventory
1.188
1
0.5
Ultimate Momerft
HS 7D Operating
1.537
1
0.5
Uldmate Moment
M3
M352 -44
1.789
1.789
1
0.6
Ultimate Moment
1
0.6
Ultimate Mornerrt
M353 -48
SU4 —
SU5
1,785
1
D15
Ultimate mornert
1.5M
1
D.5
Ultimate Moment
Uftknate Moment
1,569
1
0.5
SU6
1 -558
1
0 -6
U1ttWe Mamerrt
SU7
1.558
1
0.6
Ultimate Moment
Emergenw, Ratinq Spam Lorabon
Vehidiez Factor Pier Limit State
EV2 1,363 1 0,5 Ultimate Moment
EV3 0.981 1 0,6 Uldmate Moment _
1 Ekwtion may be on bade or another sheet if it wort Frt here,
2 Choose from: 9eM a or ultimates shear or moment
3 For information only
30
Note:Kornments
LLDF 0.3
LLDF = 0.3
LLDF = 0.3429
LLDF = 0.3479
LLDF = 0.3429
LLDF = 0.3429
LLDIF = 0.3429
LLDF = 0 -3429
LLDF a 0.3429
WrbWCornrrerits
LL.RF = 0.3429
LLDF = 0.3429
FORM Rd -CL
Revised Mar. 2017
Annual f Rourtine
Permit
STD. A
sm_ R
STS. C
6 -axle: 90k -9%
T er 97k -999
Special/Single
Permit
P411
P413
C1S2b�
0170
C214b
C237b
025611
E200]
No
Resh ict on
Rating Factor
1,450
1,160
1,285
1,656
1,74
No
Restriction
Rating Factor
1,209
1.160
1.004
1,575
1,243
1,328
1,336
1.242
BRIDGE RATING DETAILS
Straddle Two
La
5 Impxact
Rating Factor
Rabrq Fwkor
1.450
1.450
1.160
1160
1.285
1.2
1.656
1.656
1.674
1.674
X
Straddle Two
Lanes
5% Impact
Rating Factor
RatIng Facer
1.209 **
1,209
1.160**
1.16D
I'M **
1.094
1.575 **
1,575
1.242 **
1,242
1.328 **
1,329
1.336 **
1.336
1242**
1,242
t+laWComrrents
Nate3�Corrrrnent5
OVERWEIGHT PERMIT RESTRICTIONS FOR LOCAL BRIDGES
Restriction Rest ridi0n Swal/ A]nF)ual/
Code rlpt)on Single Routine Detailed Restriction bescriptior, Bridge Check Operatlon
Permik I Permit
1 Bone YES I YES
2 I Two Lanes I YES I YES
No Restriction to cross bridge
Drive on the certiterline bttween
tm lanes, rn a manner that
prevents any otheir vehicle from
occupying a part of either lane on
elther sidle of the permit veh Ide.
Drive in the Gerkb�r of a single lane
Normal
The AASHTO "Single Lane' Ilve
load aistribution is used_ �
OPL-ra applies to all t
ffmfhvd or to aww/
vehkles when
,? RPR method.
The impact farmer is reduced
from the AASHT0 impact to
5%
Used when requirements for
restriction 1 thru 3 are rrit Mf!t
Not allowed where there is a posted minimum speed.
** "NjA ", Does not apply when perform Irbg LRFR method! ref. AASHTC MBE Table 6A.4,5.4,2a.I
31
Maxi mum
Y
3
speed of
Drive at a speed of 10 mph or Iez
10 m h
X
DENIED
YES
YES
The overweight permit vehlcle Is
NOT ALLOWED Cin this bridge
Normal
The AASHTO "Single Lane' Ilve
load aistribution is used_ �
OPL-ra applies to all t
ffmfhvd or to aww/
vehkles when
,? RPR method.
The impact farmer is reduced
from the AASHT0 impact to
5%
Used when requirements for
restriction 1 thru 3 are rrit Mf!t
Not allowed where there is a posted minimum speed.
** "NjA ", Does not apply when perform Irbg LRFR method! ref. AASHTC MBE Table 6A.4,5.4,2a.I
31