US Bridges

TR 41 over Kaskaskia River

Fair

Coles County, Illinois · 1.0 MI N Cooks Mill · Structure no. 015306800000000

Built
1969
56 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
175
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 41 over Kaskaskia River is a steel stringer/multi-beam or girder carrying TR 41 over Kaskaskia River in Coles 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 5 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 175 vehicles a day, roughly 5% of them trucks, projected to reach 126 by 2046. The structure is 24 ft (7.3 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTR 41
CrossesKaskaskia River
Location1.0 MI N Cooks Mill
RouteCounty Highway 0
CountyColes County
StateIllinois
Coordinates39.60798, -88.40003
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50 US tons
Inventory rating33.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span23 ft (7.1 m)
Deck width22 ft (6.8 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2024)
Projected traffic126 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
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 41 over Kaskaskia River built?

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

What condition is TR 41 over Kaskaskia River 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 January 2025.

How much traffic does TR 41 over Kaskaskia River carry?

About 175 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is TR 41 over Kaskaskia River?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7.1 m) and a deck 22 ft wide.

Who owns TR 41 over Kaskaskia River?

It is owned by the Town or Township Highway Agency.