US Bridges

TR 118A over Kings Mill Creek

Fair

McLean County, Illinois · 1.3 MI NW Twin Grove · Structure no. 057430700000000

Built
1978
47 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete Continuous
Length
70 ft
3 main spans
Daily traffic
200
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 118A over Kings Mill Creek is a concrete continuous slab carrying TR 118A over Kings Mill Creek in McLean County, Illinois. It was built in 1978, so it is 47 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 5 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 200 vehicles a day, roughly 27% of them trucks, projected to reach 152 by 2046. The structure is 70 ft (21.3 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesTR 118A
CrossesKings Mill Creek
Location1.3 MI NW Twin Grove
RouteCounty Highway 0
CountyMcLean County
StateIllinois
Coordinates40.50567, -89.09748
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length70 ft (21.3 m)
Longest span26 ft (7.9 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2024)
Projected traffic152 by 2046
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 118A over Kings Mill Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is TR 118A over Kings Mill 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 September 2023.

How much traffic does TR 118A over Kings Mill Creek carry?

About 200 vehicles per day (2024 count), of which roughly 27% are trucks.

How long is TR 118A over Kings Mill Creek?

The structure is 70 ft (21.3 m) long with a longest span of 26 ft (7.9 m) and a deck 26 ft wide.

Who owns TR 118A over Kings Mill Creek?

It is owned by the Town or Township Highway Agency.