2016-08-16_Carbella_Structure_Inspection_Report_131249892202971671.pdf

Bridge Inventory Information

General Location Data

(6A) Feature Intersected YELLOWSTONE RIVER

(9) Location 15M S EMIGRANT

(22) Owner 02 02 County Hwy Agency

(8) NBI Structure Number L34301000+03001

(SR) Sufficiency Rating 41.34

(MDT076) Deck Condition Fair-1

(MDT077) Structure Condition

Good

(MDT058) Structurally Deficient|Functionally Obsolete

0 Not Deficient

A- Location Data

(2) MDT Inspection District 02 BUTTE

(3) County Code 067 PARK

(4) Place Code 00000 Rural Area

(7) Facility Carried by Structure MINER CREEK RD

(MDT020) MDT Maintenance Division 22 BOZEMAN

(21) Maintenance Responsibility 02 02 County Hwy Agency

(MDT027) On|Off System 0 Off System

(MDT078) MDT Maintenance Section none Not a State Maintained Bridge

(112) Nbis Bridge Length Y Long Enough

B- Construction Data

(MDT017) MDT Construction Project Number

(MDT018) MDT Construction Station +0

(MDT019) MDT Drawing Number RECORDS

(MDT021) MDT UPN

(27) Year Built 1918

(106) Year Reconstructed

C- Improvement Cost Data

(75A) Type of Work Proposed 31 31 Repl-Load Capacity

(75B) Work to be Completed by 1 1 Contract

Bridge Inspection Date: 08-18-2016

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

15M S EMIGRANT - YELLOWSTONE RIVER 061

(76) Length Of Structure Improvement 209.9

(94) Bridge Improvement Cost 266000

(95) Roadway Improvement Cost 133000

(96) Total Project Cost 399000

(97) Year Of Improvement Cost Estimate 2009

D- Border State Data

(98A-2) Border Bridge - Neighboring FHWA Region Code

(98A-1) Border Bridge-Neighboring State Code

(98B) Border Bridge-Percent Responsibility

(99) Border Bridge Structure Number

E- Historical Structure Data

(37) Historical Significance 5 5 Not eligible for NRHP

F - Bridge Location

(16) Latitude (DMS) 451216.66

(17) Longitude (DMS) 1105406.56

H - Main Span

(43A) Main Span Material 3 Steel

(43B) Main Span Design Type 10 Truss - Thru

(45) Number Of Spans In Main Unit 1

I - Approach Span

(44A) Approach Span Material 0 Not Applicable

G - Span and Dimensional Data

(33) Bridge Median 0 0 No median

(34) Skew 0

(35) Structure Flared 0 0 No flare

(42A) Type of Service on Bridge 1 1 Highway

(48) Length Of Maximum Span 175

(49) Structure Length 176

(53) Min Vert Clear Over Bridge Roadway 14.33

(101) Parallel Structure Designation N No parallel structure exists

(103) Temporary Structure Designation

(116) Minimum Navigation Vertical Clearance

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

(44B) Approach Span Design Type 00 Other

(46) Number Of Approach Spans 0

J - Deck Data

(MDT006) Deck Area 2797

(50A) Left Curb|Sidewalk Width 1

(50B) Right Curb|Sidewalk Width 1

(52) Out-to-Out Deck Width 15.9

(107) Deck Structure Type 8 Wood or Timber

(108A) Type of Wearing Surface 7 Wood or Timber

(108B) Type of Membrane 0 None

(108C) Deck Protection 0 None

L - Load and Rating Data

(MDT016) Load Rating Date

(MDT022) Name of Load Rater -1

(31) Design load 0 Unknown

(MDT036) SU4 Truck Inventory Rating

(MDT037) SU4 Truck Operating Rating

(MDT039) SU5 Truck Inventory Rating

(MDT040) SU5 Truck Operating Rating

(MDT042) SU6 Truck Inventory Rating

(MDT043) SU6 Truck Operating Rating

(MDT045) SU7 Truck Inventory Rating

K - Under Bridge Service

(28B) Lanes Under the Structure 0

(42B) Type of Service under 5 Waterway

(54A) Minimum Vertical Underclearance- Reference Feature

N Feature not a highway or railroad

(54B) Minimum Vertical Underclearance 0

(55A) Min Lateral Underclear On Right- Reference Feature

N Feature not a highway or railroad

(55B) Minimum Lateral Underclearance on Right 0

(56) Min Lateral Underclear On Left 0

(69) Underclear, Vertical and Horizontal N Not applicable

(111) Pier|abutment Protection

(113) Scour Critical Status 5 Bridge foundations determined to be stable for calculated scour conditions.

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

(MDT046) SU7 Truck Operating Rating

(63) Method Used to Determine Operating Rating

2 Allowable Stress (AS)

(64) Operating Rating 19

(65) Method Used To Determine Inventory Rating

2 Allowable Stress (AS)

(66) Inventory Rating 14

(70) Legal Load Status 3 10.0 - 19.9% below

M - General Facility Data

(5A) Inventory Route-Record Type 1 Route carried `on` the structure

(5B) Route Signing Prefix 4 County highway

(5C) Designated Level of Service 1 Mainline

(5D) Route Number 34301

(5E) Directional Suffix 3 South

(MDT009) Detour Speed -1

(11) Accumulated Miles .287

(12) Base Highway Network 0 Not on Base Network

(13A) LRS Number C034301N

(13B) Inventory Route, Subroute Number- Subroute Number

(19) Bypass|Detour Length 9

(MDT030) Posted speed limit (MPH) 35

(MDT075) Roadway System

(MDT087) Mile Post .3

(104) NHS Indicator 0 Not on the NHS

N - Base Network Data

(28A) Lanes on the Structure 1

(28B) Lanes Under the Structure 0

(32) Approach Roadway Width 18

(51) Bridge Roadway Width Curb-To-Curb 15.1

(72) Approach Roadway Alignment 4 Minimum Tolerable

O - Other NetWork Data

(6B) Features Intersected-Critical Facility Indicator

(20) Toll 3 On Free Road

(MDT048) School Bus Route 0 Not on School Bus Route

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

(100) STRAHNET Highway Designation 0 Not a STRAHNET hwy

(105) Federal Lands Highways 0 Not applicable

(110) National Truck Network 0 Not part of National Truck Network

P - Roadway Size and Clearance Data

(MDT007) Departmental Route L34301

(10) Minimum Vertical Clearance 14.33

(47) Total Horizontal Clearance 15.1

(102) Direction of Traffic 3 One lane bridge for 2-way traffic

Q - Traffic Data

(26) Functional Classification 08 Rural, Minor Collector

(29) Average Daily Traffic 100

(30) Year of Average Daily Traffic 2002

(MDT060) Traffic Volume Class 01

(109) Average Daily Truck Traffic (%) 3

(114) Future Average Daily Traffic 100

(115) Year Of Future Avg Daily Traffic 2026

General Bridge Notes

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

R- Inspection Current Value Previous Value

(36A) Traffic Safety Features - Bridge Railings 0 0

(36B) Traffic Safety Features - Transitions N N

(36C) Traffic Safety Features - Approach guardrail

N N

(36D) Traffic Safety Features - Approach guardrail Ends

0 0

(41) Structure Open, Posted, or Closed to Traffic

P P

(58) Deck Rating 6 6

(59) Superstructure 5 5

(60) Substructure 6 6

(61) Channel 8 8

(62) Culvert N N

(67) Structural Evaluation 4 4

(68) Deck Geometry 5 5

(69) Underclear, Vertical and Horizontal N N

(71) Waterway Adequacy 8 8

(MDT076) Deck Condition Fair-1

(MDT077) Structure Condition Good

Inspection Information

Responsible Person Name Signature

Inspector Todd Demski

QC Amanda Jackson

User Begin End Comments

T Demski 08-12-2016 08:08:00 08-15-2016 05:08:00 Team Member: Zach Williams

T Demski 08-15-2016 08:08:00 08-15-2016 05:08:00 Team Member: Zach Williams

Day Weather Temperature Comments

08-15-2016 Sunny 60

Inspection Hours and Dates Current Value Previous Values

(MDT005) Date Last QA 2000-01-01

(MDT010) FC Inspection Details D

(MDT011) FC Next Inspection Date 2018-8-15 2016-08-17

(MDT023) Next Inspection Date 2018-08-18 2018-8-15

(MDT028) Other Inspection Details none

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Other Inspection Next Date

(MDT034) Request Review of Load rating 0

(MDT050) Snooper Required N

Special Inspection Date

Special Inspection Frequency (months)

Special Inspection Next Date

Special Inspection Required

(MDT058) Structurally Deficient|Functionally Obsolete

0 0

Type 1 Underwater Inspection Required

Type 1 Underwater Inspection Date

Type 1 Underwater Inspection Frequency (months)

(MDT064) Type 1 Underwater Inspection Next Date

(MDT074) Underwater Inspection Details N

Type 2 Underwater Next Inspection Date

(90) Inspection Date 2016-08-18 2016-8-15

(91) Regular Inspection Frequency (Months) 24 24.00

(92A) FC Inspection Frequency (Months) 24

(92A-1) FC Inspection Required Y Y24

(92B-1) Type 2 Underwater Inspection Required

N N

Type 2 Underwater Inspection Frequency (Months)

(92C-1) Other Inspection Required N N

Other Inspection Frequency (Months)

(93A) FC Inspection Date 2016-8-15 19-AUG-14

General Inspection Notes

All numbering was south to north and west to east unless otherwise noted. Water was flowing south.

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Repair Suggestions:

Repair ID Date Requested

Type Status Priority Comments

#Error 10-26-2016 Repair suggestion

Open Low The timber wearing surface should be repaired near L2' or completely replaced due to severe wear and rutting up to 3 in. deep.

#Error 11-15-2016 Repair suggestion

Open High Install vertical clearance signs on either end of the bridge to warn over-height vehicles from crossing the bridge.

#Error 11-15-2016 Repair suggestion

Open High Repair piping hole by grouting the area between the boulders to prevent additional loss of fill.

#Error 11-15-2016 Repair suggestion

Open High advanced warning signs (Weight Limit and One Lane Bridge) be installed leading up to the east approach of the bridge.

#Error 11-15-2016 Repair suggestion

Open Low Clean deck of debris.

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

#Error 11-15-2016 Repair suggestion

Open Low Remove vegetation from the cracks between the East Abutment and adjacent wing walls.

#Error 11-15-2016 Repair suggestion

Open Low Replace missing and loose bolts on the upper bracing member connections with a high strength bolted connection.

General Bridge Photos

Photo #:East Approach Location: , Comments: East Approach

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Photo #:Underside Framing System Location: , Comments:

Underside Framing System

Photo #:South Elevation Location: , Comments: South elevation looking north

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Photo #:West Portal Location: , Comments: West Approach Portal

Photo #:East Portal Location: , Comments: East Approach Portal

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Photo #:North Elevation Location: , Comments: North elevation looking south

Photo #:West Approach Signage Location: , Comments:

West Approach Signage

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Photo #:East Approach Signage Location: , Comments: East Approach Signage on Bridge Diagonal

Photo #:Looking Downstream Location: , Comments: Looking Downstream (South)

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Photo #:Looking Upstream Location: , Comments: Looking Upstream (North)

Photo #:West Approach Location: , Comments: West Approach

Element # Parent Element

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

31 Timber Deck (SF) Area 2799 100.0 0.0 0.0 0.0

Previous Inspection Notes:

Much the same conditions as previous. Continue with state 1 this inspection. Condition State 1 : 100

Current Inspection Notes:

Element Inspection Data

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Element # Parent Element

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

Much the same conditions as previous. Continue with state 1 this inspection.

There was a creosote coating on approximately 5% of the timber deck underside. The uncoated area had no signs of rot or decay.

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

113 Steel Stringer

(LF)

Length 1401 0.0 100.0 0.0 0.0

113 1000 - Corrosion Length 1401 0.0 100.0 0.0 0.0

Current Inspection Notes:

There was freckle corrosion and negligible section loss to the edges of the top and bottom flanges where the painted coating had failed.

Photo #:Photo0

Location:

Comments: Freckle corrosion with negligible section loss to the edges of the top and bottom flanges.

Element:113 - Steel Stringer (LF)

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

120 Steel Truss (LF) Length 351 0.0 100.0 0.0 0.0

120 1900 - Distortion Length 351 0.0 28.5 0.0 0.0

120 1010 - Cracking Length 351 0.0 0.3 0.0 0.0

120 1000 - Corrosion Length 351 0.0 100.0 0.0 0.0

Previous Inspection Notes:

Note: beginning with 2014 report, all Truss Connection points are numbered AOL (left truss=upstream), oppposite of all previous reports. Lower Chord L4 to L7 has impact damage from high water debris in 1974 or earlier. Outer C channel near L5 has fractures adjacent to rivets (photos). Pin connection plates L4,L5,L6,L7(left) all have some impact damage (photos). Minor impact L6 right. Condition State 1 : 50.14 Note: beginning with 2014 report, all Truss Connection points are numbered AOL (left truss=upstream), oppposite of all previous reports. Lower Chord L4 to L7 has impact damage from high water debris in 1974 or earlier. Outer C channel near L5 has fractures adjacent to rivets (photos). Pin connection plates L4,L5,L6,L7(left) all have some impact damage (photos). Minor impact L6 right. Condition State 3 : 19.94 Note: beginning with 2014 report, all Truss Connection points are numbered AOL (left truss=upstream), oppposite of all previous reports. Lower Chord L4 to L7 has impact damage from high water debris in 1974 or earlier. Outer C channel near L5 has fractures adjacent to rivets (photos). Pin connection plates L4,L5,L6,L7(left) all have some impact damage (photos). Minor impact L6 right. Condition State 2 : 29.91

Current Inspection Notes:

lamination crack on diagonal There was impact damage to the south truss from debris during times of high water. There was no cracking noted at, or around, the impact locations. The bottom chord was distorted up to 12 in. towards the north.

Note: beginning with 2014 report, all Truss Connection points are numbered AOL (left truss=upstream), oppposite of all previous reports. Lower Chord L4 to L7 has impact damage from high water debris in 1974 or earlier. Outer C channel near L5 has fractures adjacent to rivets (photos). Pin connection plates L4,L5,L6,L7(left) all have some impact damage (photos). Minor impact L6 right.

Diagonal L3'-U2' had a steel lamination on the inner eyebar located 5.5 ft. off the bridge deck.

There was moderate corrosion with negligible section loss on the outer C-channel on the bottom chords. There was isolated areas of minor surface corrosion and negligible section loss throughout the remainder of the truss.

Photo #:L1-L2

Location:

Comments: Impact damage between L1 and L2. Member bent approximately 8 in.

to the north (downstream).

Element:120 - Steel Truss (LF)

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

Photo #:L3'-U2'

Location:

Comments: Steel lamination in Diagonal L3'-U2'

Element:120 - Steel Truss (LF)

Photo #:L2-L3

Location:

Comments: Multiple areas of impact damage between L2 and L3. Member bent a maximum of 12 in. to the north (downstream).

Element:120 - Steel Truss (LF)

Photo #:L3-L4

Location:

Comments: Area of impact damage approximately 10 ft. west of L4. Member bent approximately 4 in. to the north (downstream).

Element:120 - Steel Truss (LF)

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

Photo #:Photo4

Location:

Comments: Moderate corrosion with negligible section loss to the outside C-channel on the bottom chord.

Element:120 - Steel Truss (LF)

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

152 Steel Floor Beam

(LF)

Length 141 0.0 100.0 0.0 0.0

152 1000 - Corrosion Length 141 0.0 100.0 0.0 0.0

Current Inspection Notes:

There was freckle rust and negligible section loss to the top and bottom flanges along the floor beams.

Photo #:Photo7

Location:

Comments: Freckle rust and negligible section loss to the top and bottom flanges of the steel floor beams.

Element:152 - Steel Floor Beam (LF)

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

215 Reinforced Concrete Abutment (LF)

Length 171 0.0 88.3 11.7 0.0

215 1190 - Abrasion/Wear

(PSC|RC)

Length 171 0.0 100.0 0.0 0.0

215 1130 - Cracking (RC and Other)

Length 171 0.0 15.2 1.2 0.0

215 1090 - Exposed Rebar

Length 171 0.0 0.0 6.4 0.0

215 1080 - Delamination/Spa ll/Patched Area

Length 171 0.0 2.3 4.1 0.0

Current Inspection Notes:

Wide cracks at the wing wall to East Abutment intrefaces extending from the beam seats. Vegetation and large trees growing fromt he cracks.

The west abutment had a 3 ft. high by 4 ft. wide by 8 in. deep spall on the bottom, south corner and a 1 ft. high by 2

ft. wide by 6 in. spall on the bottom, north corner.

The northwest wingwall had a 6 in. wide by 8 in. high by 5 in. deep spall at the top corner of the wingwall and the abutment.

There was a longitudinal crack up to 1/16 in. wide that ran along the entire length of the east abutment. There were also 8 vertical cracks that were up to 1/16 in. wide.

There was a vertical crack coming both beam seats on the east abutment that ran along the wingwalls with heavy vegetation growing out of them. The edges of the crack had chipped and spalled up to 3 in.

There was 5 LF of cracking up to 3/32 in. wide on the southwest wingwall.

There was 4 LF of cracking up to 1/16 in. wide on teh northwest wingwall.

There was an area of heavy abrasion and wear that had caused exposed rebar on the corner of the southwest wingwall and the west abutment that was 11 ft. wide by 3 ft. high and up to 6 in. of penetration.

The northeast wingwall had a 26 in. wide by 12 in. high and an 18.5 in. wide by 7 in. high area of delamination approximately 6 ft. from the west edge.

There was minor wear and isolated areas of exposed aggregate througout the abutments and wingwalls.

Photo #:Photo13

Location:

Comments: Typical wear on a wingwall with isolated areas of exposed aggregate.

Element:215 - Reinforced Concrete Abutment (LF)

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

Photo #:Photo11

Location:

Comments: Area of heavy abrasion and wear that had caused exposed rebar on the corner of the southwest wingwall and the west abutment that was 11 ft. wide by 3 ft. high and up to 6 in. of penetration.

Element:215 - Reinforced Concrete Abutment (LF)

Photo #:Photo12

Location:

Comments: The northwest wingwall had a 6 in. wide by 8 in. high by 5 in. deep spall at the top corner of the wingwall and the abutment.

Element:215 - Reinforced Concrete Abutment (LF)

Photo #:Photo10

Location:

Comments: Typical cracking up to 1/16 in.

on wingwall with vertical crack coming from corner of beam seat on east abutment.

Element:215 - Reinforced Concrete Abutment (LF)

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

Photo #:SE Wing Wall Crack

Location:

Comments: Wide crack extending from the East Abutment bearing seat with heavy vegetation.

Element:215 - Reinforced Concrete Abutment (LF)

Photo #:NE Wing Wall Crack

Location:

Comments: Wide crack extending from the East Abutment bearing seat with heavy vegetation.

Element:215 - Reinforced Concrete Abutment (LF)

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

311 Movable Bearing (roller, sliding, etc.) (EA)

Each 2 0.0 100.0 0.0 0.0

311 2220 - Alignment Each 2 0.0 50.0 0.0 0.0

311 1000 - Corrosion Each 2 0.0 100.0 0.0 0.0

Current Inspection Notes:

Both nested rollers on the east abutment had failed paint with minor surface corrosion and negligible section loss.

The southeast nested roller was walking out from underneath the plates 2-1/4 in. to the west.

Photo #:Photo16

Location:

Comments: The southeast nested roller was walking out from underneath the plates 2-1/4 in. to the west.

Element:311 - Movable Bearing (roller, sliding, etc.) (EA)

Photo #:Photo0

Location:

Comments: Northeast bearing with minor corrosion. Anchor rods were loose in concrete. Heavy vegetation around the bearing.

Element:311 - Movable Bearing (roller, sliding, etc.) (EA)

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

313 Fixed Bearing

(EA)

Each 2 0.0 100.0 0.0 0.0

313 1000 - Corrosion Each 2 0.0 100.0 0.0 0.0

Current Inspection Notes:

The paint system had failed on approximately 10% of the surface area with freckle corrosion and negligible section loss.

Photo #:Photo17

Location:

Comments: Typical fixed bearing with freckle corrosion and negligible section loss.

Element:313 - Fixed Bearing (EA)

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

330 Steel Bridge Rail

(LF)

Length 351 0.0 100.0 0.0 0.0

330 1000 - Corrosion Length 351 0.0 100.0 0.0 0.0

Current Inspection Notes:

The rail had total loss of painted coating with moderate corrosion and negligible section loss.

Photo #:Photo18

Location:

Comments: Steel bridge rail with moderate corosion and negligible section loss.

Element:330 - Steel Bridge Rail (LF)

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

332 Timber Bridge Rail (LF)

Length 351 0.0 100.0 0.0 0.0

332 1020 - Connection

Length 351 0.0 100.0 0.0 0.0

Current Inspection Notes:

Approximately 90% of the connection hardware between the rail and the deck was loose.

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

510 31 Wearing Surfaces

(SF)

Area 2799 0.0 99.5 0.5 0.0

510 31 1180 - Abrasion/Wear (Timber)

Area 2799 0.0 98.0 0.5 0.0

Current Inspection Notes:

There was a board near L2' that was completely deteriorated and needed replacement.

There was wear and rutting up to 3 in. deep with the most severe rutting near the transitions.

Photo #:Photo14

Location:

Comments: Board near L2' with heavy deterioration.

Element:510 - Wearing Surfaces (SF)

Photo #:Photo15

Location:

Comments: Typical wearing and rutting up to 3 in. of timber wearing surface.

Element:510 - Wearing Surfaces (SF)

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

515 113 Steel Protective Coating (SF)

Area 3850 0.0 20.0 50.0 30.0

515 820 3440 - Effectiveness (Steel Protective Coatings)

Area 400 0.0 40.0 30.0 30.0

515 330 3440 - Effectiveness (Steel Protective Coatings)

Area 175 0.0 40.0 30.0 30.0

515 313 3440 - Effectiveness (Steel Protective Coatings)

Area 2 0.0 50.0 40.0 10.0

515 311 3440 - Effectiveness (Steel Protective Coatings)

Area 2 0.0 30.0 40.0 30.0

515 152 3440 - Effectiveness (Steel Protective Coatings)

Area 396 0.0 20.0 50.0 30.0

515 120 3440 - Effectiveness (Steel Protective Coatings)

Area 1400 0.0 40.0 30.0 30.0

515 113 3440 - Effectiveness (Steel Protective Coatings)

Area 3850 0.0 20.0 50.0 30.0

515 120 Steel Protective Coating (SF)

Area 1400 0.0 40.0 30.0 30.0

515 152 Steel Protective Coating (SF)

Area 396 0.0 20.0 50.0 30.0

515 311 Steel Protective Coating (SF)

Area 2 0.0 30.0 40.0 30.0

515 313 Steel Protective Coating (SF)

Area 2 0.0 50.0 40.0 10.0

515 330 Steel Protective Coating (SF)

Area 175 0.0 40.0 30.0 30.0

515 820 Steel Protective Coating (SF)

Area 400 0.0 40.0 30.0 30.0

Previous Inspection Notes:

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

Note: beginning with 2014 report, all Truss Connection points are numbered AOL (left truss=upstream), oppposite of all previous reports. Lower Chord L4 to L7 has impact damage from high water debris in 1974 or earlier. Outer C channel near L5 has fractures adjacent to rivets (photos). Pin connection plates L4,L5,L6,L7(left) all have some impact damage (photos). Minor impact L6 right. Condition State 1 : 49.75 Note: beginning with 2014 report, all Truss Connection points are numbered AOL (left truss=upstream), oppposite of all previous reports. Lower Chord L4 to L7 has impact damage from high water debris in 1974 or earlier. Outer C channel near L5 has fractures adjacent to rivets (photos). Pin connection plates L4,L5,L6,L7(left) all have some impact damage (photos). Minor impact L6 right. Condition State 4 : 50 Note: beginning with 2014 report, all Truss Connection points are numbered AOL (left truss=upstream), oppposite of all previous reports. Lower Chord L4 to L7 has impact damage from high water debris in 1974 or earlier. Outer C channel near L5 has fractures adjacent to rivets (photos). Pin connection plates L4,L5,L6,L7(left) all have some impact damage (photos). Minor impact L6 right. Condition State 3 : 75 Note: beginning with 2014 report, all Truss Connection points are numbered AOL (left truss=upstream), oppposite of all previous reports. Lower Chord L4 to L7 has impact damage from high water debris in 1974 or earlier. Outer C channel near L5 has fractures adjacent to rivets (photos). Pin connection plates L4,L5,L6,L7(left) all have some impact damage (photos). Minor impact L6 right. Condition State 2 : 75

Current Inspection Notes:

Note: beginning with 2014 report, all Truss Connection points are numbered AOL (left truss=upstream), oppposite of all previous reports. Lower Chord L4 to L7 has impact damage from high water debris in 1974 or earlier. Outer C channel near L5 has fractures adjacent to rivets (photos). Pin connection plates L4,L5,L6,L7(left) all have some impact damage (photos). Minor impact L6 right.

Approximately 50% of the painted surface on the steel stringers was beginning to chalk and bubble.

Approximately 40% of the painted surface on the steel cross frames were beginning to chalk and dull, but was still protecting the steel.

The painted surface had failed on approximately 30% of the surface area with a majority of the failed paint along the edges of the top and bottom flanges.

40% of the surface area is chalking and peeling.

Approximately 50% of the painted surface was beginning to chalk and peel.

30 percent of the paint was chalking and peeling.

Approximately 20% of the painted surface on the steel floorbeams was beginning to chalk, but was still protecting the steel.

Approximately 40% of the painted surface on the steel truss was beginning to chalk, but was still protecting the steel.

50% of the surface area had surface dulling, but was still protecting the steel.

Approximately Approximately 20% of the painted surface on the steel stringers was beginning to chalk, but was still protecting the steel.

10% of the paint has failed.

The painted surface had failed on approximately 30% of the surface area with a majority of the failed paint along the outside C-channel on the bottom chords.

Bracing had a painted coating that has failed on approximately 30 percent of the surface area with moderate surface corrosion and negligible section loss.

Railing had a painted coating that has failed on approximately 30 percent of the surface area with moderate surface corrosion and negligible section loss.

The paint was beginning to chalk and buble on approximately 30% of the surface area throughout the truss structure.

The paint was beginning to chalk on approximately 30% of the surface area throughout the truss structure.

Approximately 30% of the painted surface on the steel stringers had failed and lost all effectiveness.

Approximately 40% of the painted surface on the steel bridge rail was beginning to chalk and dull, but was still protecting the steel.

30% of the surface area had surface dulling, but was still protecting the steel.

30% of the paint has failed.

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

820 Steel Truss Vertical Cross- Frame (LF)

Length 108 0.0 100.0 0.0 0.0

820 1900 - Distortion Length 108 0.0 56.5 0.0 0.0

820 1020 - Connection

Length 108 0.0 4.6 0.0 0.0

820 1000 - Corrosion Length 108 0.0 100.0 0.0 0.0

Current Inspection Notes:

South Truss at U3’: One missing bolt on the bottom side of the top bracing gusset connection.

South Truss at U2’: One loose bolt on the bottom side of the top bracing gusset connection.

North and South Truss at M2’. Bolts used to attach the retrofitted bracing member to the verticals were unengaged by up to two threads.

North Truss at U3: One loose bolt on the bottom side of the top bracing gusset connection.

North Truss at U3’: One missing bolt on the bottom side of the top bracing gusset connection.

Minor surface corrosion throughout the cross bracing.

The lower horizontal bracing member at Panel Point 2 had impact damage and was bent 12 in. to the east.

The lower horizontal bracing member at Panel Point 3 had impact damage and was bent 1 in. to the west and the rotated the member.

The lower horizontal bracing member at Panel Point 3’ had impact damage and was bent 1 in. to the east and 1 in.

downward.

Photo #:U2 prime south

Location:

Comments: Loose bolt at U2' on the South Truss.

Element:820 - Steel Truss Vertical Cross- Frame (LF)

Photo #:U3 Prime North

Location:

Comments: Missing bolt at U3' on the North Truss.

Element:820 - Steel Truss Vertical Cross- Frame (LF)

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

Photo #:U3 prime south

Location:

Comments: Missing bolt at U3' on the South Truss.

Element:820 - Steel Truss Vertical Cross- Frame (LF)

Photo #:PP3

Location:

Comments: Impact damage to lower bracing member at Panel Point 3.

Element:820 - Steel Truss Vertical Cross- Frame (LF)

Photo #:U3 North

Location:

Comments: Loose bolt at U3 on the North Truss.

Element:820 - Steel Truss Vertical Cross- Frame (LF)

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859

General Inspection Notes

Previous Inspection Notes

Current Inspection Notes

Element # Parent Element

Name Unit Quantity %CS 1 %CS 2 %CS 3 %CS 4

Photo #:PP3'

Location:

Comments: Impact damage to lower bracing member at Panel Point 3'.

Element:820 - Steel Truss Vertical Cross- Frame (LF)

Photo #:PP2

Location:

Comments: Impact damage to lower bracing member at Panel Point 2.

Element:820 - Steel Truss Vertical Cross- Frame (LF)

Generated by: MDT on 11/30/2016

STRUCTURE INSPECTION REPORT

Structure # 03859