US Bridges

Ill 127 over Trib to L Crooked CR

Good

Washington County, Illinois · 0.30 M N Ill 177 · Structure no. 095200200000000

Built
1936
89 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
28 ft
3 main spans
Daily traffic
2,650
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 127 over Trib to L Crooked CR is a concrete culvert carrying Ill 127 over Trib to L Crooked CR in Washington County, Illinois. It was built in 1936, so it is 89 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 2,650 vehicles a day, roughly 18% of them trucks, projected to reach 3,146 by 2046. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 36 mi (58 km).

CarriesIll 127
CrossesTrib to L Crooked CR
Location0.30 M N Ill 177
RouteState Highway 127
Coordinates38.44567, -89.37001
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.7 US tons
Inventory rating36.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length28 ft (8.5 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,650 (2023)
Projected traffic3,146 by 2046
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed36 mi (58 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ill 127 over Trib to L Crooked CR built?

It was built in 1936, making it 89 years old in 2025.

What condition is Ill 127 over Trib to L Crooked CR 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 November 2024.

How much traffic does Ill 127 over Trib to L Crooked CR carry?

About 2,650 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is Ill 127 over Trib to L Crooked CR?

The structure is 28 ft (8.5 m) long with a longest span of 8 ft (2.4 m).

Who owns Ill 127 over Trib to L Crooked CR?

It is owned by the State Highway Agency.