US Bridges

TR 241 (cedar Grov over Interstate 57

Poor

Williamson County, Illinois · 0.9 MI W of Ill 37 · Structure no. 100005400000000

Built
1961
64 years old
Condition
Poor
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
252 ft
4 main spans
Daily traffic
1,750
2021 count
Owner
State
State Highway Agency

About this bridge

TR 241 (cedar Grov over Interstate 57 is a steel continuous stringer/multi-beam or girder carrying TR 241 (cedar Grov over Interstate 57 in Williamson 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 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 1,750 vehicles a day, roughly 11% of them trucks, projected to reach 1,768 by 2046. The structure is 252 ft (76.7 m) long and 30 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesTR 241 (cedar Grov
CrossesInterstate 57
Location0.9 MI W of Ill 37
CountyWilliamson County
StateIllinois
Coordinates37.76313, -88.94918
Functional classUrban 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating27.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length252 ft (76.7 m)
Longest span79 ft (24.2 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,750 (2021)
Projected traffic1,768 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.8 mi (11 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$180,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was TR 241 (cedar Grov over Interstate 57 built?

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

What condition is TR 241 (cedar Grov over Interstate 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 June 2023.

How much traffic does TR 241 (cedar Grov over Interstate 57 carry?

About 1,750 vehicles per day (2021 count), of which roughly 11% are trucks.

How long is TR 241 (cedar Grov over Interstate 57?

The structure is 252 ft (76.7 m) long with a longest span of 79 ft (24.2 m) and a deck 30 ft wide.

Who owns TR 241 (cedar Grov over Interstate 57?

It is owned by the State Highway Agency.