US Bridges

TR 8 (TH-R56) over Crow Creek

Fair

Marshall County, Illinois · T13N-R8E-4PM Sec 4 · Structure no. 062402100000000

Built
1972
53 years old
Condition
Fair
inspected August 2023
Type
Culvert
Steel
Length
28 ft
2 main spans
Daily traffic
10
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 8 (TH-R56) over Crow Creek is a steel culvert carrying TR 8 (TH-R56) over Crow Creek in Marshall County, Illinois. It was built in 1972, so it is 53 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 10 vehicles a day, projected to reach 10 by 2046. The structure is 28 ft (8.5 m) long.

Location

Open in Google Maps
CarriesTR 8 (TH-R56)
CrossesCrow Creek
LocationT13N-R8E-4PM Sec 4
RouteCounty Highway 0
CountyMarshall County
StateIllinois
Coordinates41.13764, -89.6016
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2024)
Projected traffic10 by 2046
Trucks0%
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 8 (TH-R56) over Crow Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is TR 8 (TH-R56) over Crow Creek 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 August 2023.

How much traffic does TR 8 (TH-R56) over Crow Creek carry?

About 10 vehicles per day (2024 count).

How long is TR 8 (TH-R56) over Crow Creek?

The structure is 28 ft (8.5 m) long with a longest span of 13 ft (4 m).

Who owns TR 8 (TH-R56) over Crow Creek?

It is owned by the Town or Township Highway Agency.