US Bridges

TR 149 (TH-D18) over S Branch Crow CR

Fair

Marshall County, Illinois · T29N-R1E-3PM Sec 33 · Structure no. 062461900000000

Built
1969
56 years old
Condition
Fair
inspected April 2023
Type
Channel Beam
Concrete
Length
73 ft
3 main spans
Daily traffic
50
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 149 (TH-D18) over S Branch Crow CR is a concrete channel beam carrying TR 149 (TH-D18) over S Branch Crow CR in Marshall County, Illinois. It was built in 1969, so it is 56 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 50 vehicles a day, roughly 40% of them trucks, projected to reach 51 by 2046. The structure is 73 ft (22.3 m) long and 26 ft wide.

Location

Open in Google Maps
CarriesTR 149 (TH-D18)
CrossesS Branch Crow CR
LocationT29N-R1E-3PM Sec 33
RouteCounty Highway 0
CountyMarshall County
StateIllinois
Coordinates40.93404, -89.1229
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.2 US tons
Inventory rating32.5 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 15
Structure length73 ft (22.3 m)
Longest span24 ft (7.3 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic51 by 2046
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 149 (TH-D18) over S Branch Crow CR built?

It was built in 1969, making it 56 years old in 2025.

What condition is TR 149 (TH-D18) over S Branch Crow CR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2023.

How much traffic does TR 149 (TH-D18) over S Branch Crow CR carry?

About 50 vehicles per day (2024 count), of which roughly 40% are trucks.

How long is TR 149 (TH-D18) over S Branch Crow CR?

The structure is 73 ft (22.3 m) long with a longest span of 24 ft (7.3 m) and a deck 26 ft wide.

Who owns TR 149 (TH-D18) over S Branch Crow CR?

It is owned by the Town or Township Highway Agency.