US Bridges

TR 256 over Gay Creek

Good

Iroquois County, Illinois · 3.5S 2.0W of Milford · Structure no. 038474500000000

Built
1984
41 years old
Condition
Good
inspected August 2022
Type
Channel Beam
Concrete
Length
92 ft
3 main spans
Daily traffic
10
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 256 over Gay Creek is a concrete channel beam carrying TR 256 over Gay Creek in Iroquois County, Illinois. It was built in 1984, so it is 41 years old, younger 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 10 vehicles a day, projected to reach 10 by 2046. The structure is 92 ft (28 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTR 256
CrossesGay Creek
Location3.5S 2.0W of Milford
RouteCounty Highway 0
Coordinates40.57671, -87.73185
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length92 ft (28 m)
Longest span30 ft (9.1 m)
Deck width26 ft (8 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2022)
Projected traffic10 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 256 over Gay Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is TR 256 over Gay Creek 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 August 2022.

How much traffic does TR 256 over Gay Creek carry?

About 10 vehicles per day (2022 count).

How long is TR 256 over Gay Creek?

The structure is 92 ft (28 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns TR 256 over Gay Creek?

It is owned by the Town or Township Highway Agency.