US Bridges

Ill 127 over Overflow Crooked CR

Fair

Washington County, Illinois · 1.8 M S Il 161 · Structure no. 095002300000000

Built
1934
91 years old, rebuilt 1988
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
902 ft
18 main spans
Daily traffic
2,750
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 127 over Overflow Crooked CR is a steel continuous stringer/multi-beam or girder carrying Ill 127 over Overflow Crooked CR in Washington County, Illinois. It was built in 1934 and reconstructed in 1988, so it is 91 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 6 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 2,750 vehicles a day, roughly 21% of them trucks, projected to reach 3,207 by 2046. The structure is 902 ft (275 m) long and 35 ft wide. If it were closed, the detour would be 36 mi (58 km).

CarriesIll 127
CrossesOverflow Crooked CR
Location1.8 M S Il 161
RouteState Highway 127
Coordinates38.50906, -89.35301
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.6 US tons
Inventory rating46.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans18
Design loadHS 20
Structure length902 ft (275 m)
Longest span50 ft (15.2 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,750 (2023)
Projected traffic3,207 by 2046
Trucks21%
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 Overflow Crooked CR built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1988.

What condition is Ill 127 over Overflow Crooked CR 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 November 2024.

How much traffic does Ill 127 over Overflow Crooked CR carry?

About 2,750 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is Ill 127 over Overflow Crooked CR?

The structure is 902 ft (275 m) long with a longest span of 50 ft (15.2 m) and a deck 35 ft wide.

Who owns Ill 127 over Overflow Crooked CR?

It is owned by the State Highway Agency.