US Bridges

TR 304 over Salt Fork Trib

Good

Champaign County, Illinois · 3 MI Wnw of Homer · Structure no. 010436100000000

Built
1900
125 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
400
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 304 over Salt Fork Trib is a concrete culvert carrying TR 304 over Salt Fork Trib in Champaign County, Illinois. It was built in 1900, so it is 125 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 400 vehicles a day, roughly 10% of them trucks, projected to reach 404 by 2046. The structure is 30 ft (9.1 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesTR 304
CrossesSalt Fork Trib
Location3 MI Wnw of Homer
RouteCounty Highway 0
Coordinates40.04637, -88.00971
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span14 ft (4.2 m)
Deck width38 ft (11.7 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2021)
Projected traffic404 by 2046
Trucks10%
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 304 over Salt Fork Trib built?

It was built in 1900, making it 125 years old in 2025.

What condition is TR 304 over Salt Fork Trib in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does TR 304 over Salt Fork Trib carry?

About 400 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is TR 304 over Salt Fork Trib?

The structure is 30 ft (9.1 m) long with a longest span of 14 ft (4.2 m) and a deck 38 ft wide.

Who owns TR 304 over Salt Fork Trib?

It is owned by the Town or Township Highway Agency.