US Bridges

TR 313 over Richland Creek

PoorPosted for load

Shelby County, Illinois · 5 MI SW Strasburg · Structure no. 087319800000000

Built
1967
58 years old
Condition
Poor
inspected February 2024
Type
Girder and Floorbeam System
Steel
Length
90 ft
2 main spans
Daily traffic
50
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 313 over Richland Creek is a steel girder and floorbeam system carrying TR 313 over Richland Creek in Shelby County, Illinois. It was built in 1967, so it is 58 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, roughly 4% of them trucks, projected to reach 76 by 2046. The structure is 90 ft (27.4 m) long and 21 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesTR 313
CrossesRichland Creek
Location5 MI SW Strasburg
RouteCounty Highway 0
Coordinates39.31404, -88.70273
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating13.2 US tons
Inventory rating6.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length90 ft (27.4 m)
Longest span59 ft (18 m)
Deck width21 ft (6.5 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic76 by 2046
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$742,000
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 313 over Richland Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is TR 313 over Richland Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2024.

How much traffic does TR 313 over Richland Creek carry?

About 50 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is TR 313 over Richland Creek?

The structure is 90 ft (27.4 m) long with a longest span of 59 ft (18 m) and a deck 21 ft wide.

Who owns TR 313 over Richland Creek?

It is owned by the Town or Township Highway Agency.