US Bridges

US 36(FAP 323) over W Okaw River Trib

Fair

Moultrie County, Illinois · 6 MI W of Hammond · Structure no. 070004300000000

Built
1986
39 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
112 ft
3 main spans
Daily traffic
2,050
2023 count
Owner
State
State Highway Agency

About this bridge

US 36(FAP 323) over W Okaw River Trib is a concrete continuous slab carrying US 36(FAP 323) over W Okaw River Trib in Moultrie County, Illinois. It was built in 1986, so it is 39 years old, younger 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 2,050 vehicles a day, roughly 24% of them trucks, projected to reach 2,468 by 2046. The structure is 112 ft (34.1 m) long and 39 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS 36(FAP 323)
CrossesW Okaw River Trib
Location6 MI W of Hammond
RouteU.S. Route 36
Coordinates39.79224, -88.69698
Functional classRural Principal Arterial - Other

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.8 US tons
Inventory rating52.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length112 ft (34.1 m)
Longest span42 ft (12.8 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,050 (2023)
Projected traffic2,468 by 2046
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 36(FAP 323) over W Okaw River Trib built?

It was built in 1986, making it 39 years old in 2025.

What condition is US 36(FAP 323) over W Okaw River Trib 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 May 2023.

How much traffic does US 36(FAP 323) over W Okaw River Trib carry?

About 2,050 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is US 36(FAP 323) over W Okaw River Trib?

The structure is 112 ft (34.1 m) long with a longest span of 42 ft (12.8 m) and a deck 39 ft wide.

Who owns US 36(FAP 323) over W Okaw River Trib?

It is owned by the State Highway Agency.