US Bridges

FAS 1605(CH 11) over I-57

Poor

Coles County, Illinois · 1.0 MI N Cumb CO LN · Structure no. 015003700000000

Built
1964
61 years old
Condition
Poor
inspected October 2023
Type
Tee Beam
Concrete Continuous
Length
238 ft
4 main spans
Daily traffic
625
2024 count
Owner
State
State Highway Agency

About this bridge

FAS 1605(CH 11) over I-57 is a concrete continuous tee beam carrying FAS 1605(CH 11) over I-57 in Coles County, Illinois. It was built in 1964, so it is 61 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.

It carries about 625 vehicles a day, roughly 8% of them trucks, projected to reach 657 by 2046. The structure is 238 ft (72.5 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFAS 1605(CH 11)
CrossesI-57
Location1.0 MI N Cumb CO LN
RouteCounty Highway 0
CountyColes County
StateIllinois
Coordinates39.38863, -88.40618
Functional classRural Major Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.5 US tons
Inventory rating25 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length238 ft (72.5 m)
Longest span72 ft (21.9 m)
Deck width32 ft (9.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic625 (2024)
Projected traffic657 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAS 1605(CH 11) over I-57 built?

It was built in 1964, making it 61 years old in 2025.

What condition is FAS 1605(CH 11) over I-57 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 October 2023.

How much traffic does FAS 1605(CH 11) over I-57 carry?

About 625 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is FAS 1605(CH 11) over I-57?

The structure is 238 ft (72.5 m) long with a longest span of 72 ft (21.9 m) and a deck 32 ft wide.

Who owns FAS 1605(CH 11) over I-57?

It is owned by the State Highway Agency.