US Bridges

FAP 774 (il 128) over Kaskaskia River

Fair

Shelby County, Illinois · 1 MI SE of Cowden · Structure no. 087002300000000

Built
1976
49 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Single or Spread
Steel Continuous
Length
649 ft
5 main spans
Daily traffic
2,700
2023 count
Owner
State
State Highway Agency

About this bridge

FAP 774 (il 128) over Kaskaskia River is a steel continuous box beam or girders - single or spread carrying FAP 774 (il 128) over Kaskaskia River in Shelby County, Illinois. It was built in 1976, so it is 49 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 2,700 vehicles a day, roughly 15% of them trucks, projected to reach 2,879 by 2046. The structure is 649 ft (197.8 m) long and 46 ft wide.

Location

Open in Google Maps
CarriesFAP 774 (il 128)
CrossesKaskaskia River
Location1 MI SE of Cowden
RouteState Highway 128
CountyShelby County
StateIllinois
Coordinates39.23076, -88.84299
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating102.2 US tons
Inventory rating61.1 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length649 ft (197.8 m)
Longest span137 ft (41.9 m)
Deck width46 ft (14 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2023)
Projected traffic2,879 by 2046
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 FAP 774 (il 128) over Kaskaskia River built?

It was built in 1976, making it 49 years old in 2025.

What condition is FAP 774 (il 128) over Kaskaskia River 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 July 2024.

How much traffic does FAP 774 (il 128) over Kaskaskia River carry?

About 2,700 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is FAP 774 (il 128) over Kaskaskia River?

The structure is 649 ft (197.8 m) long with a longest span of 137 ft (41.9 m) and a deck 46 ft wide.

Who owns FAP 774 (il 128) over Kaskaskia River?

It is owned by the State Highway Agency.