US Bridges

Il 16 WB (fap 91) over Riley Creek

Fair

Coles County, Illinois · 0.5 MI W Charleston · Structure no. 015001700000000

Built
1961
64 years old, rebuilt 1996
Condition
Fair
inspected April 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
245 ft
3 main spans
Daily traffic
15,100
2023 count
Owner
State
State Highway Agency

About this bridge

Il 16 WB (fap 91) over Riley Creek is a steel continuous girder and floorbeam system carrying Il 16 WB (fap 91) over Riley Creek in Coles County, Illinois. It was built in 1961 and reconstructed in 1996, so it is 64 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 15,100 vehicles a day, roughly 6% of them trucks, projected to reach 7,171 by 2046. The structure is 245 ft (74.7 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIl 16 WB (fap 91)
CrossesRiley Creek
Location0.5 MI W Charleston
RouteState Highway 16
CountyColes County
StateIllinois
Coordinates39.48411, -88.20746
Functional classUrban Other Principal Arterial

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 inspectionApril 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating34.6 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20
Structure length245 ft (74.7 m)
Longest span94 ft (28.8 m)
Deck width37 ft (11.2 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,100 (2023)
Projected traffic7,171 by 2046
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Il 16 WB (fap 91) over Riley Creek built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1996.

What condition is Il 16 WB (fap 91) over Riley 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 April 2024.

How much traffic does Il 16 WB (fap 91) over Riley Creek carry?

About 15,100 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Il 16 WB (fap 91) over Riley Creek?

The structure is 245 ft (74.7 m) long with a longest span of 94 ft (28.8 m) and a deck 37 ft wide.

Who owns Il 16 WB (fap 91) over Riley Creek?

It is owned by the State Highway Agency.