US Bridges

Red Shale HILL-TR1 over Dillon Creek

Fair

Tazewell County, Illinois · NE-34-T24NR4W · Structure no. 090309300000000

Built
1962
63 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
87 ft
2 main spans
Daily traffic
250
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Red Shale HILL-TR1 over Dillon Creek is a steel continuous stringer/multi-beam or girder carrying Red Shale HILL-TR1 over Dillon Creek in Tazewell County, Illinois. It was built in 1962, so it is 63 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 250 vehicles a day, roughly 24% of them trucks, projected to reach 202 by 2046. The structure is 87 ft (26.5 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRed Shale HILL-TR1
CrossesDillon Creek
LocationNE-34-T24NR4W
RouteCounty Highway 0
Coordinates40.49543, -89.53485
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating46.4 US tons
Inventory rating25 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length87 ft (26.5 m)
Longest span42 ft (12.8 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2023)
Projected traffic202 by 2046
Trucks24%
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 Red Shale HILL-TR1 over Dillon Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is Red Shale HILL-TR1 over Dillon 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 2025.

How much traffic does Red Shale HILL-TR1 over Dillon Creek carry?

About 250 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is Red Shale HILL-TR1 over Dillon Creek?

The structure is 87 ft (26.5 m) long with a longest span of 42 ft (12.8 m) and a deck 28 ft wide.

Who owns Red Shale HILL-TR1 over Dillon Creek?

It is owned by the Town or Township Highway Agency.