US Bridges

FAS 1335 Ch 42 over Trib Little Mud CR

Fair

Iroquois County, Illinois · 1.2MI N JCT CH44+42 · Structure no. 038300900000000

Built
1925
100 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete
Length
29 ft
1 main span
Daily traffic
150
2022 count
Owner
County
County Highway Agency

About this bridge

FAS 1335 Ch 42 over Trib Little Mud CR is a concrete slab carrying FAS 1335 Ch 42 over Trib Little Mud CR in Iroquois County, Illinois. It was built in 1925, so it is 100 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 5 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 150 vehicles a day, roughly 13% of them trucks, projected to reach 126 by 2046. The structure is 29 ft (8.8 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFAS 1335 Ch 42
CrossesTrib Little Mud CR
Location1.2MI N JCT CH44+42
RouteCounty Highway 0
Coordinates40.60296, -87.9396
Functional classRural Minor 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span27 ft (8.2 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)
Projected traffic126 by 2046
Trucks13%
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

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 FAS 1335 Ch 42 over Trib Little Mud CR built?

It was built in 1925, making it 100 years old in 2025.

What condition is FAS 1335 Ch 42 over Trib Little Mud 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 July 2024.

How much traffic does FAS 1335 Ch 42 over Trib Little Mud CR carry?

About 150 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is FAS 1335 Ch 42 over Trib Little Mud CR?

The structure is 29 ft (8.8 m) long with a longest span of 27 ft (8.2 m) and a deck 27 ft wide.

Who owns FAS 1335 Ch 42 over Trib Little Mud CR?

It is owned by the County Highway Agency.