US Bridges

TR 105 over Jonathan Creek

Fair

Moultrie County, Illinois · 2.2 MI NE Sullivan · Structure no. 070431000000000

Built
1960
65 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete
Length
60 ft
2 main spans
Daily traffic
75
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 105 over Jonathan Creek is a concrete slab carrying TR 105 over Jonathan Creek in Moultrie County, Illinois. It was built in 1960, so it is 65 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 75 vehicles a day, roughly 5% of them trucks, projected to reach 79 by 2046. The structure is 60 ft (18.2 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTR 105
CrossesJonathan Creek
Location2.2 MI NE Sullivan
RouteCounty Highway 0
Coordinates39.61153, -88.54324
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50.7 US tons
Inventory rating30.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 15
Structure length60 ft (18.2 m)
Longest span29 ft (8.9 m)
Deck width24 ft (7.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2020)
Projected traffic79 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 105 over Jonathan Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is TR 105 over Jonathan Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2025.

How much traffic does TR 105 over Jonathan Creek carry?

About 75 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is TR 105 over Jonathan Creek?

The structure is 60 ft (18.2 m) long with a longest span of 29 ft (8.9 m) and a deck 24 ft wide.

Who owns TR 105 over Jonathan Creek?

It is owned by the Town or Township Highway Agency.