US Bridges

TR 45 over Grand Pierre Creek Trib

Fair

Pope County, Illinois · NW1/4 S8T12SR7E · Structure no. 090801000001001

Built
1989
36 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
29 ft
1 main span
Daily traffic
29
1993 count
Owner
Federal
U.S. Forest Service

About this bridge

TR 45 over Grand Pierre Creek Trib is a prestressed concrete box beam or girders - multiple carrying TR 45 over Grand Pierre Creek Trib in Pope County, Illinois. It was built in 1989, so it is 36 years old, younger 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 6 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 29 vehicles a day, projected to reach 43 by 2045. The structure is 29 ft (8.8 m) long and 24 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesTR 45
CrossesGrand Pierre Creek Trib
LocationNW1/4 S8T12SR7E
RouteFederal Lands Road 126
CountyPope County
StateIllinois
Coordinates37.495, -88.465
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40 US tons
Inventory rating30.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length29 ft (8.8 m)
Longest span28 ft (8.4 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29 (1993)
Projected traffic43 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 45 over Grand Pierre Creek Trib built?

It was built in 1989, making it 36 years old in 2025.

What condition is TR 45 over Grand Pierre Creek Trib 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 May 2023.

How much traffic does TR 45 over Grand Pierre Creek Trib carry?

About 29 vehicles per day (1993 count).

How long is TR 45 over Grand Pierre Creek Trib?

The structure is 29 ft (8.8 m) long with a longest span of 28 ft (8.4 m) and a deck 24 ft wide.

Who owns TR 45 over Grand Pierre Creek Trib?

It is owned by the U.S. Forest Service.