US Bridges

TR 278 over Camp Creek

Fair

Mercer County, Illinois · SE-16-T15NR1W · Structure no. 066510600000000

Built
1900
125 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
46 ft
1 main span
Daily traffic
400
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 278 over Camp Creek is a steel stringer/multi-beam or girder carrying TR 278 over Camp Creek in Mercer 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 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 400 vehicles a day, roughly 29% of them trucks, projected to reach 379 by 2046. The structure is 46 ft (13.9 m) long and 18 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTR 278
CrossesCamp Creek
LocationSE-16-T15NR1W
RouteCounty Highway 0
CountyMercer County
StateIllinois
Coordinates41.28964, -90.49338
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating40.3 US tons
Inventory rating24.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length46 ft (13.9 m)
Longest span45 ft (13.6 m)
Deck width18 ft (5.4 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2024)
Projected traffic379 by 2046
Trucks29%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$128,000
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 278 over Camp Creek built?

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

What condition is TR 278 over Camp 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 September 2024.

How much traffic does TR 278 over Camp Creek carry?

About 400 vehicles per day (2024 count), of which roughly 29% are trucks.

How long is TR 278 over Camp Creek?

The structure is 46 ft (13.9 m) long with a longest span of 45 ft (13.6 m) and a deck 18 ft wide.

Who owns TR 278 over Camp Creek?

It is owned by the Town or Township Highway Agency.