US Bridges

Ch 5 over FAI 172

Good

Adams County, Illinois · .7MI S I172/IL104 · Structure no. 001004600000000

Built
1976
49 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
276 ft
2 main spans
Daily traffic
3,450
2024 count
Owner
State
State Highway Agency

About this bridge

Ch 5 over FAI 172 is a steel continuous stringer/multi-beam or girder carrying Ch 5 over FAI 172 in Adams County, Illinois. It was built in 1976, so it is 49 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,450 vehicles a day, roughly 3% of them trucks, projected to reach 3,586 by 2046. The structure is 276 ft (84.1 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCh 5
CrossesFAI 172
Location.7MI S I172/IL104
RouteCounty Highway 0
Coordinates39.92432, -91.32327
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating41.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length276 ft (84.1 m)
Longest span115 ft (35 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,450 (2024)
Projected traffic3,586 by 2046
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 Ch 5 over FAI 172 built?

It was built in 1976, making it 49 years old in 2025.

What condition is Ch 5 over FAI 172 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does Ch 5 over FAI 172 carry?

About 3,450 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Ch 5 over FAI 172?

The structure is 276 ft (84.1 m) long with a longest span of 115 ft (35 m) and a deck 36 ft wide.

Who owns Ch 5 over FAI 172?

It is owned by the State Highway Agency.