US Bridges

TR 121 Main RD over Camp Creek

Good

Jackson County, Illinois · NW Corn Sec 7-8-2 · Structure no. 039324000000000

Built
2003
22 years old
Condition
Good
inspected December 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
62 ft
1 main span
Daily traffic
10
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 121 Main RD over Camp Creek is a prestressed concrete box beam or girders - multiple carrying TR 121 Main RD over Camp Creek in Jackson County, Illinois. It was built in 2003, so it is 22 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 7 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, roughly 30% of them trucks, projected to reach 51 by 2046. The structure is 62 ft (19 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesTR 121 Main RD
CrossesCamp Creek
LocationNW Corn Sec 7-8-2
RouteCounty Highway 0
Coordinates37.84698, -89.37696
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length62 ft (19 m)
Longest span55 ft (16.9 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2022)
Projected traffic51 by 2046
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 121 Main RD over Camp Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is TR 121 Main RD over Camp 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 December 2022.

How much traffic does TR 121 Main RD over Camp Creek carry?

About 10 vehicles per day (2022 count), of which roughly 30% are trucks.

How long is TR 121 Main RD over Camp Creek?

The structure is 62 ft (19 m) long with a longest span of 55 ft (16.9 m) and a deck 24 ft wide.

Who owns TR 121 Main RD over Camp Creek?

It is owned by the Town or Township Highway Agency.