US Bridges

TR 503 over Dismal Creek

Good

Fayette County, Illinois · 2.25 MI NW Laclede · Structure no. 026343800000000

Built
2012
13 years old
Condition
Good
inspected January 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
72 ft
1 main span
Daily traffic
75
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 503 over Dismal Creek is a prestressed concrete box beam or girders - multiple carrying TR 503 over Dismal Creek in Fayette County, Illinois. It was built in 2012, so it is 13 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 75 vehicles a day, roughly 23% of them trucks, projected to reach 77 by 2046. The structure is 72 ft (21.9 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesTR 503
CrossesDismal Creek
Location2.25 MI NW Laclede
RouteCounty Highway 0
Coordinates38.89525, -88.75499
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
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 2023
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 25 or greater
Structure length72 ft (21.9 m)
Longest span69 ft (21 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2023)
Projected traffic77 by 2046
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 503 over Dismal Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is TR 503 over Dismal 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 2023.

How much traffic does TR 503 over Dismal Creek carry?

About 75 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is TR 503 over Dismal Creek?

The structure is 72 ft (21.9 m) long with a longest span of 69 ft (21 m) and a deck 24 ft wide.

Who owns TR 503 over Dismal Creek?

It is owned by the Town or Township Highway Agency.