US Bridges

TR 4 over Blue Creek

Poor

Woodford County, Illinois · 1.1 MI E Ill 26 · Structure no. 102315400000000

Built
1987
38 years old
Condition
Poor
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
425
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 4 over Blue Creek is a prestressed concrete box beam or girders - multiple carrying TR 4 over Blue Creek in Woodford County, Illinois. It was built in 1987, so it is 38 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 425 vehicles a day, roughly 10% of them trucks, projected to reach 429 by 2046. The structure is 52 ft (15.7 m) long and 28 ft wide.

CarriesTR 4
CrossesBlue Creek
Location1.1 MI E Ill 26
RouteCounty Highway 0
Coordinates40.81234, -89.5011
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be 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 alignment6: Equal to present minimum criteria
Operating rating70.3 US tons
Inventory rating42.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length52 ft (15.7 m)
Longest span49 ft (14.8 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic425 (2020)
Projected traffic429 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 4 over Blue Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is TR 4 over Blue Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.

How much traffic does TR 4 over Blue Creek carry?

About 425 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is TR 4 over Blue Creek?

The structure is 52 ft (15.7 m) long with a longest span of 49 ft (14.8 m) and a deck 28 ft wide.

Who owns TR 4 over Blue Creek?

It is owned by the Town or Township Highway Agency.