US Bridges

TR 143 over Elliott Creek

Good

Montgomery County, Illinois · 4 MI SE Nokomis · Structure no. 068326400000000

Built
1984
41 years old
Condition
Good
inspected November 2024
Type
Channel Beam
Concrete
Length
86 ft
3 main spans
Daily traffic
150
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 143 over Elliott Creek is a concrete channel beam carrying TR 143 over Elliott Creek in Montgomery County, Illinois. It was built in 1984, so it is 41 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 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 150 vehicles a day, roughly 9% of them trucks, projected to reach 152 by 2046. The structure is 86 ft (26.2 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTR 143
CrossesElliott Creek
Location4 MI SE Nokomis
RouteCounty Highway 0
Coordinates39.27133, -89.20369
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length86 ft (26.2 m)
Longest span34 ft (10.4 m)
Deck width26 ft (8 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2020)
Projected traffic152 by 2046
Trucks9%
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 143 over Elliott Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is TR 143 over Elliott 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 November 2024.

How much traffic does TR 143 over Elliott Creek carry?

About 150 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is TR 143 over Elliott Creek?

The structure is 86 ft (26.2 m) long with a longest span of 34 ft (10.4 m) and a deck 26 ft wide.

Who owns TR 143 over Elliott Creek?

It is owned by the Town or Township Highway Agency.