US Bridges

CH-8 (FAS-939) over Trib to Hess Bayou

Fair

Pulaski County, Illinois · 0.24 MI W RTE 37 · Structure no. 077308200000000

Built
1982
43 years old
Condition
Fair
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
59 ft
1 main span
Daily traffic
1,400
2023 count
Owner
County
County Highway Agency

About this bridge

CH-8 (FAS-939) over Trib to Hess Bayou is a prestressed concrete box beam or girders - multiple carrying CH-8 (FAS-939) over Trib to Hess Bayou in Pulaski County, Illinois. It was built in 1982, so it is 43 years old, younger 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 1,400 vehicles a day, roughly 18% of them trucks, projected to reach 1,465 by 2046. The structure is 59 ft (18 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCH-8 (FAS-939)
CrossesTrib to Hess Bayou
Location0.24 MI W RTE 37
RouteCounty Highway 0
CountyPulaski County
StateIllinois
Coordinates37.12892, -89.15553
Functional classRural Major Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating38.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length59 ft (18 m)
Longest span56 ft (17.1 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,400 (2023)
Projected traffic1,465 by 2046
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 CH-8 (FAS-939) over Trib to Hess Bayou built?

It was built in 1982, making it 43 years old in 2025.

What condition is CH-8 (FAS-939) over Trib to Hess Bayou 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 CH-8 (FAS-939) over Trib to Hess Bayou carry?

About 1,400 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is CH-8 (FAS-939) over Trib to Hess Bayou?

The structure is 59 ft (18 m) long with a longest span of 56 ft (17.1 m) and a deck 32 ft wide.

Who owns CH-8 (FAS-939) over Trib to Hess Bayou?

It is owned by the County Highway Agency.