US Bridges

TR 312 over Branch of Mckee Crk

Fair

Adams County, Illinois · 1.0 MI S Coatsburg · Structure no. 001500700000000

Built
1908
117 years old, rebuilt 1973
Condition
Fair
inspected April 2024
Type
Culvert
Steel
Length
21 ft
1 main span
Daily traffic
50
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 312 over Branch of Mckee Crk is a steel culvert carrying TR 312 over Branch of Mckee Crk in Adams County, Illinois. It was built in 1908 and reconstructed in 1973, so it is 117 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, projected to reach 51 by 2046. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTR 312
CrossesBranch of Mckee Crk
Location1.0 MI S Coatsburg
RouteCounty Highway 0
CountyAdams County
StateIllinois
Coordinates40.01411, -91.15728
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: 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 spans1
Design loadHS 15
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic51 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 312 over Branch of Mckee Crk built?

It was built in 1908, making it 117 years old in 2025. It was reconstructed in 1973.

What condition is TR 312 over Branch of Mckee Crk 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 2024.

How much traffic does TR 312 over Branch of Mckee Crk carry?

About 50 vehicles per day (2024 count).

How long is TR 312 over Branch of Mckee Crk?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m).

Who owns TR 312 over Branch of Mckee Crk?

It is owned by the Town or Township Highway Agency.