US Bridges

TR 103 over Salt Creek

Good

De Witt County, Illinois · 1 MI SW Parnell · Structure no. 020304500000000

Built
1968
57 years old
Condition
Good
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
62 ft
2 main spans
Daily traffic
50
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 103 over Salt Creek is a prestressed concrete box beam or girders - multiple carrying TR 103 over Salt Creek in De Witt County, Illinois. It was built in 1968, so it is 57 years old, older 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 4% of them trucks, projected to reach 51 by 2046. The structure is 62 ft (18.9 m) long and 22 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesTR 103
CrossesSalt Creek
Location1 MI SW Parnell
RouteCounty Highway 0
Coordinates40.20693, -88.73137
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.4 US tons
Inventory rating21.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 15
Structure length62 ft (18.9 m)
Longest span32 ft (9.8 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic51 by 2046
Trucks4%
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 103 over Salt Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is TR 103 over Salt 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 2024.

How much traffic does TR 103 over Salt Creek carry?

About 50 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is TR 103 over Salt Creek?

The structure is 62 ft (18.9 m) long with a longest span of 32 ft (9.8 m) and a deck 22 ft wide.

Who owns TR 103 over Salt Creek?

It is owned by the Town or Township Highway Agency.