US Bridges

Ch 21 (staunton RD over FAI 70

Fair

Madison County, Illinois · 1.8 M E FAI 55 · Structure no. 060018200000000

Built
1965
60 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
224 ft
4 main spans
Daily traffic
1,000
2021 count
Owner
State
State Highway Agency

About this bridge

Ch 21 (staunton RD over FAI 70 is a steel continuous stringer/multi-beam or girder carrying Ch 21 (staunton RD over FAI 70 in Madison County, Illinois. It was built in 1965, so it is 60 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 1,000 vehicles a day, roughly 7% of them trucks, projected to reach 1,070 by 2046. The structure is 224 ft (68.3 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCh 21 (staunton RD
CrossesFAI 70
Location1.8 M E FAI 55
RouteCounty Highway 0
CountyMadison County
StateIllinois
Coordinates38.75593, -89.87454
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 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 alignment6: Equal to present minimum criteria
Operating rating58.5 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length224 ft (68.3 m)
Longest span67 ft (20.4 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2021)
Projected traffic1,070 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$517,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ch 21 (staunton RD over FAI 70 built?

It was built in 1965, making it 60 years old in 2025.

What condition is Ch 21 (staunton RD over FAI 70 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 December 2024.

How much traffic does Ch 21 (staunton RD over FAI 70 carry?

About 1,000 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Ch 21 (staunton RD over FAI 70?

The structure is 224 ft (68.3 m) long with a longest span of 67 ft (20.4 m) and a deck 30 ft wide.

Who owns Ch 21 (staunton RD over FAI 70?

It is owned by the State Highway Agency.