US Bridges

TR 75 (TH-C69) over Strawn Creek

Fair

Marshall County, Illinois · T29N-R2W-3PM Sec 4 · Structure no. 062481700000000

Built
1969
56 years old
Condition
Fair
inspected March 2023
Type
Culvert
Steel
Length
24 ft
2 main spans
Daily traffic
25
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 75 (TH-C69) over Strawn Creek is a steel culvert carrying TR 75 (TH-C69) over Strawn Creek 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 25 vehicles a day, projected to reach 25 by 2046. The structure is 24 ft (7.2 m) long and 26 ft wide.

Location

Open in Google Maps
CarriesTR 75 (TH-C69)
CrossesStrawn Creek
LocationT29N-R2W-3PM Sec 4
RouteCounty Highway 0
CountyMarshall County
StateIllinois
Coordinates41.01007, -89.34622
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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 adequacy6: Equal to 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 loadUnknown
Structure length24 ft (7.2 m)
Longest span11 ft (3.3 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2024)
Projected traffic25 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 75 (TH-C69) over Strawn Creek built?

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

What condition is TR 75 (TH-C69) over Strawn 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 March 2023.

How much traffic does TR 75 (TH-C69) over Strawn Creek carry?

About 25 vehicles per day (2024 count).

How long is TR 75 (TH-C69) over Strawn Creek?

The structure is 24 ft (7.2 m) long with a longest span of 11 ft (3.3 m) and a deck 26 ft wide.

Who owns TR 75 (TH-C69) over Strawn Creek?

It is owned by the Town or Township Highway Agency.