US Bridges

Ill 127 over Trib Crooked Creek

Good

Washington County, Illinois · 3.2 MI N JCT Ill 177 · Structure no. 095007600000000

Built
2007
18 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
86 ft
1 main span
Daily traffic
2,650
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 127 over Trib Crooked Creek is a steel continuous stringer/multi-beam or girder carrying Ill 127 over Trib Crooked Creek in Washington County, Illinois. It was built in 2007, so it is 18 years old, younger 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 86 ft (26.1 m) long and 40 ft wide. If it were closed, the detour would be 36 mi (58 km).

CarriesIll 127
CrossesTrib Crooked Creek
Location3.2 MI N JCT Ill 177
RouteState Highway 127
Coordinates38.48537, -89.35867
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.7 US tons
Inventory rating48.2 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length86 ft (26.1 m)
Longest span86 ft (26.1 m)
Deck width40 ft (12.3 m)
Roadway width37 ft (11.3 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 Crooked Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is Ill 127 over Trib Crooked Creek 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 Crooked Creek carry?

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

How long is Ill 127 over Trib Crooked Creek?

The structure is 86 ft (26.1 m) long with a longest span of 86 ft (26.1 m) and a deck 40 ft wide.

Who owns Ill 127 over Trib Crooked Creek?

It is owned by the State Highway Agency.