US Bridges

TR-179 over Crabapple Creek

Fair

Lawrence County, Illinois · 1 MI SW Sumner · Structure no. 051308800000000

Built
1909
116 years old, rebuilt 1973
Condition
Fair
inspected January 2024
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
150
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR-179 over Crabapple Creek is a concrete slab carrying TR-179 over Crabapple Creek in Lawrence County, Illinois. It was built in 1909 and reconstructed in 1973, so it is 116 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 152 by 2046. The structure is 32 ft (9.8 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesTR-179
CrossesCrabapple Creek
Location1 MI SW Sumner
RouteCounty Highway 0
CountyLawrence County
StateIllinois
Coordinates38.68773, -87.87936
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span25 ft (7.6 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2021)
Projected traffic152 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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 TR-179 over Crabapple Creek built?

It was built in 1909, making it 116 years old in 2025. It was reconstructed in 1973.

What condition is TR-179 over Crabapple 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 January 2024.

How much traffic does TR-179 over Crabapple Creek carry?

About 150 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is TR-179 over Crabapple Creek?

The structure is 32 ft (9.8 m) long with a longest span of 25 ft (7.6 m) and a deck 26 ft wide.

Who owns TR-179 over Crabapple Creek?

It is owned by the Town or Township Highway Agency.