US Bridges

FAP 774(IL 128) over Robinson Creek

Fair

Shelby County, Illinois · 2 MI SW Shelbyville · Structure no. 087002200000000

Built
1975
50 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
325 ft
3 main spans
Daily traffic
2,450
2023 count
Owner
State
State Highway Agency

About this bridge

FAP 774(IL 128) over Robinson Creek is a steel continuous stringer/multi-beam or girder carrying FAP 774(IL 128) over Robinson Creek in Shelby County, Illinois. It was built in 1975, so it is 50 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 2,450 vehicles a day, roughly 15% of them trucks, projected to reach 2,525 by 2046. The structure is 325 ft (99.1 m) long and 46 ft wide.

Location

Open in Google Maps
CarriesFAP 774(IL 128)
CrossesRobinson Creek
Location2 MI SW Shelbyville
RouteState Highway 128
CountyShelby County
StateIllinois
Coordinates39.37742, -88.86203
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 protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating84.7 US tons
Inventory rating38.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length325 ft (99.1 m)
Longest span125 ft (38.2 m)
Deck width46 ft (14 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,450 (2023)
Projected traffic2,525 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 774(IL 128) over Robinson Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is FAP 774(IL 128) over Robinson 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 June 2024.

How much traffic does FAP 774(IL 128) over Robinson Creek carry?

About 2,450 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is FAP 774(IL 128) over Robinson Creek?

The structure is 325 ft (99.1 m) long with a longest span of 125 ft (38.2 m) and a deck 46 ft wide.

Who owns FAP 774(IL 128) over Robinson Creek?

It is owned by the State Highway Agency.