US Bridges

TR 47 over Calfkiller Creek

Good

Richland County, Illinois · 2 MI SW Stringtown · Structure no. 080321200000000

Built
2006
19 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
61 ft
1 main span
Daily traffic
100
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 47 over Calfkiller Creek is a prestressed concrete box beam or girders - multiple carrying TR 47 over Calfkiller Creek in Richland 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 4% of them trucks, projected to reach 101 by 2046. The structure is 61 ft (18.7 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesTR 47
CrossesCalfkiller Creek
Location2 MI SW Stringtown
RouteCounty Highway 0
Coordinates38.80588, -88.01501
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable 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 length61 ft (18.7 m)
Longest span60 ft (18.3 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic101 by 2046
Trucks4%
Lanes on structure1
Traffic directionOne-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 47 over Calfkiller Creek built?

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

What condition is TR 47 over Calfkiller 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 January 2025.

How much traffic does TR 47 over Calfkiller Creek carry?

About 100 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is TR 47 over Calfkiller Creek?

The structure is 61 ft (18.7 m) long with a longest span of 60 ft (18.3 m) and a deck 24 ft wide.

Who owns TR 47 over Calfkiller Creek?

It is owned by the Town or Township Highway Agency.