US Bridges

TR 47 over Birch Creek

Good

Lawrence County, Illinois · 3 MI W Pinkstaff · Structure no. 051327600000000

Built
2006
19 years old
Condition
Good
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
50
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 47 over Birch Creek is a prestressed concrete box beam or girders - multiple carrying TR 47 over Birch Creek in Lawrence County, Illinois. It was built in 2006, so it is 19 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 50 vehicles a day, roughly 8% of them trucks, projected to reach 51 by 2046. The structure is 52 ft (15.7 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesTR 47
CrossesBirch Creek
Location3 MI W Pinkstaff
RouteCounty Highway 0
Coordinates38.80915, -87.72031
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 protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length52 ft (15.7 m)
Longest span50 ft (15.2 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2021)
Projected traffic51 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 47 over Birch Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is TR 47 over Birch 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 2024.

How much traffic does TR 47 over Birch Creek carry?

About 50 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is TR 47 over Birch Creek?

The structure is 52 ft (15.7 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns TR 47 over Birch Creek?

It is owned by the Town or Township Highway Agency.