US Bridges

Cambridge RD/FAS23 over FAI 80

Fair

Henry County, Illinois · 4.0 MI W JCT Ill 82 · Structure no. 037011000000000

Built
1961
64 years old
Condition
Fair
inspected January 2024
Type
Tee Beam
Concrete Continuous
Length
225 ft
4 main spans
Daily traffic
650
2020 count
Owner
State
State Highway Agency

About this bridge

Cambridge RD/FAS23 over FAI 80 is a concrete continuous tee beam carrying Cambridge RD/FAS23 over FAI 80 in Henry County, Illinois. It was built in 1961, 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 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 650 vehicles a day, roughly 15% of them trucks, projected to reach 702 by 2046. The structure is 225 ft (68.5 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCambridge RD/FAS23
CrossesFAI 80
Location4.0 MI W JCT Ill 82
RouteCounty Highway 0
CountyHenry County
StateIllinois
Coordinates41.44047, -90.2311
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.3 US tons
Inventory rating26.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length225 ft (68.5 m)
Longest span68 ft (20.6 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2020)
Projected traffic702 by 2046
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cambridge RD/FAS23 over FAI 80 built?

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

What condition is Cambridge RD/FAS23 over FAI 80 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 January 2024.

How much traffic does Cambridge RD/FAS23 over FAI 80 carry?

About 650 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Cambridge RD/FAS23 over FAI 80?

The structure is 225 ft (68.5 m) long with a longest span of 68 ft (20.6 m) and a deck 30 ft wide.

Who owns Cambridge RD/FAS23 over FAI 80?

It is owned by the State Highway Agency.