US Bridges

FAS 749 over Otter Creek

Fair

Jersey County, Illinois · 3.0 MI S Ill 16 · Structure no. 042300600000000

Built
1960
65 years old, rebuilt 1996
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
161 ft
5 main spans
Daily traffic
1,100
2022 count
Owner
County
County Highway Agency

About this bridge

FAS 749 over Otter Creek is a prestressed concrete box beam or girders - multiple carrying FAS 749 over Otter Creek in Jersey 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 fair condition with a lowest component rating of 5 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 1,100 vehicles a day, roughly 5% of them trucks, projected to reach 1,414 by 2046. The structure is 161 ft (49.1 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesFAS 749
CrossesOtter Creek
Location3.0 MI S Ill 16
RouteCounty Highway 0
Coordinates39.07303, -90.39416
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating55.3 US tons
Inventory rating33.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans5
Design loadHS 20
Structure length161 ft (49.1 m)
Longest span40 ft (12.2 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2022)
Projected traffic1,414 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 FAS 749 over Otter Creek built?

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

What condition is FAS 749 over Otter 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 2023.

How much traffic does FAS 749 over Otter Creek carry?

About 1,100 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is FAS 749 over Otter Creek?

The structure is 161 ft (49.1 m) long with a longest span of 40 ft (12.2 m) and a deck 30 ft wide.

Who owns FAS 749 over Otter Creek?

It is owned by the County Highway Agency.