US Bridges

TR-40 over Coon Creek

Good

Effingham County, Illinois · 1 MI E Altamont · Structure no. 025332700000000

Built
2017
8 years old, rebuilt 2020
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
57 ft
1 main span
Daily traffic
625
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR-40 over Coon Creek is a prestressed concrete box beam or girders - multiple carrying TR-40 over Coon Creek in Effingham County, Illinois. It was built in 2017 and reconstructed in 2020, so it is 8 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 625 vehicles a day, roughly 5% of them trucks, projected to reach 636 by 2046. The structure is 57 ft (17.5 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTR-40
CrossesCoon Creek
Location1 MI E Altamont
RouteCounty Highway 0
CountyEffingham County
StateIllinois
Coordinates39.05802, -88.71961
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length57 ft (17.5 m)
Longest span55 ft (16.7 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic625 (2023)
Projected traffic636 by 2046
Trucks5%
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-40 over Coon Creek built?

It was built in 2017, making it 8 years old in 2025. It was reconstructed in 2020.

What condition is TR-40 over Coon Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does TR-40 over Coon Creek carry?

About 625 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is TR-40 over Coon Creek?

The structure is 57 ft (17.5 m) long with a longest span of 55 ft (16.7 m) and a deck 28 ft wide.

Who owns TR-40 over Coon Creek?

It is owned by the Town or Township Highway Agency.