US Bridges

Ill 23 FAP 68 over Covel Creek

PoorPosted for load

LaSalle County, Illinois · 4.95 MI S of Ill 71 · Structure no. 050004800000000

Built
1960
65 years old, rebuilt 1996
Condition
Poor
inspected March 2024
Type
Slab
Concrete Continuous
Length
102 ft
3 main spans
Daily traffic
5,550
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 23 FAP 68 over Covel Creek is a concrete continuous slab carrying Ill 23 FAP 68 over Covel Creek in LaSalle County, Illinois. It was built in 1960 and reconstructed in 1996, so it is 65 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 5,550 vehicles a day, roughly 9% of them trucks, projected to reach 6,515 by 2046. The structure is 102 ft (31.2 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesIll 23 FAP 68
CrossesCovel Creek
Location4.95 MI S of Ill 71
RouteState Highway 23
Coordinates41.27158, -88.83681
Functional classRural Principal Arterial - Other

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length102 ft (31.2 m)
Longest span38 ft (11.5 m)
Deck width36 ft (11.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,550 (2023)
Projected traffic6,515 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Ill 23 FAP 68 over Covel Creek built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1996.

What condition is Ill 23 FAP 68 over Covel Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does Ill 23 FAP 68 over Covel Creek carry?

About 5,550 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Ill 23 FAP 68 over Covel Creek?

The structure is 102 ft (31.2 m) long with a longest span of 38 ft (11.5 m) and a deck 36 ft wide.

Who owns Ill 23 FAP 68 over Covel Creek?

It is owned by the State Highway Agency.