US Bridges

Old Carpenter/Tr 1 over Trib to Cahokia Cr.

Good

Madison County, Illinois · 2.5MI SW Carrpenter · Structure no. 060333400000000

Built
2003
22 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
73 ft
1 main span
Daily traffic
350
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Old Carpenter/Tr 1 over Trib to Cahokia Cr. is a prestressed concrete box beam or girders - multiple carrying Old Carpenter/Tr 1 over Trib to Cahokia Cr. in Madison 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 350 vehicles a day, roughly 6% of them trucks, projected to reach 375 by 2046. The structure is 73 ft (22.3 m) long and 28 ft wide.

Location

Open in Google Maps
CarriesOld Carpenter/Tr 1
CrossesTrib to Cahokia Cr.
Location2.5MI SW Carrpenter
RouteCounty Highway 0
CountyMadison County
StateIllinois
Coordinates38.86821, -89.92762
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating83.2 US tons
Inventory rating49.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length73 ft (22.3 m)
Longest span71 ft (21.5 m)
Deck width28 ft (8.4 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2021)
Projected traffic375 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 Old Carpenter/Tr 1 over Trib to Cahokia Cr. built?

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

What condition is Old Carpenter/Tr 1 over Trib to Cahokia Cr. 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 October 2023.

How much traffic does Old Carpenter/Tr 1 over Trib to Cahokia Cr. carry?

About 350 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is Old Carpenter/Tr 1 over Trib to Cahokia Cr.?

The structure is 73 ft (22.3 m) long with a longest span of 71 ft (21.5 m) and a deck 28 ft wide.

Who owns Old Carpenter/Tr 1 over Trib to Cahokia Cr.?

It is owned by the Town or Township Highway Agency.