US Bridges

Il 121 (fap 773) over Cottonwood Creek

Fair

Cumberland County, Illinois · 1 MI SE of Toledo · Structure no. 018001800000000

Built
1960
65 years old, rebuilt 2000
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
128 ft
3 main spans
Daily traffic
3,150
2023 count
Owner
State
State Highway Agency

About this bridge

Il 121 (fap 773) over Cottonwood Creek is a steel continuous stringer/multi-beam or girder carrying Il 121 (fap 773) over Cottonwood Creek in Cumberland County, Illinois. It was built in 1960 and reconstructed in 2000, so it is 65 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 3,150 vehicles a day, roughly 6% of them trucks, projected to reach 3,172 by 2046. The structure is 128 ft (38.9 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesIl 121 (fap 773)
CrossesCottonwood Creek
Location1 MI SE of Toledo
RouteState Highway 121
CountyCumberland County
StateIllinois
Coordinates39.26099, -88.22479
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.8 US tons
Inventory rating57.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length128 ft (38.9 m)
Longest span46 ft (13.9 m)
Deck width34 ft (10.3 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,150 (2023)
Projected traffic3,172 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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$604,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Il 121 (fap 773) over Cottonwood Creek built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2000.

What condition is Il 121 (fap 773) over Cottonwood Creek 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 April 2024.

How much traffic does Il 121 (fap 773) over Cottonwood Creek carry?

About 3,150 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Il 121 (fap 773) over Cottonwood Creek?

The structure is 128 ft (38.9 m) long with a longest span of 46 ft (13.9 m) and a deck 34 ft wide.

Who owns Il 121 (fap 773) over Cottonwood Creek?

It is owned by the State Highway Agency.