US Bridges

Township RD 4 over Spring Creek

Fair

Bureau County, Illinois · 3 MI NE of Ladd · Structure no. 006307700000000

Built
1934
91 years old
Condition
Fair
inspected December 2023
Type
Tee Beam
Concrete
Length
58 ft
1 main span
Daily traffic
275
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Township RD 4 over Spring Creek is a concrete tee beam carrying Township RD 4 over Spring Creek in Bureau County, Illinois. It was built in 1934, so it is 91 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 275 vehicles a day, roughly 6% of them trucks, projected to reach 278 by 2046. The structure is 58 ft (17.7 m) long and 26 ft wide.

Location

Open in Google Maps
CarriesTownship RD 4
CrossesSpring Creek
Location3 MI NE of Ladd
RouteCounty Highway 0
CountyBureau County
StateIllinois
Coordinates41.39991, -89.16522
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length58 ft (17.7 m)
Longest span57 ft (17.4 m)
Deck width26 ft (7.8 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275 (2020)
Projected traffic278 by 2046
Trucks6%
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 Township RD 4 over Spring Creek built?

It was built in 1934, making it 91 years old in 2025.

What condition is Township RD 4 over Spring 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 December 2023.

How much traffic does Township RD 4 over Spring Creek carry?

About 275 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Township RD 4 over Spring Creek?

The structure is 58 ft (17.7 m) long with a longest span of 57 ft (17.4 m) and a deck 26 ft wide.

Who owns Township RD 4 over Spring Creek?

It is owned by the Town or Township Highway Agency.