US Bridges

Niehaus Rd/ TR 326 over Silver Creek

FairPosted for load

Madison County, Illinois · 2.5 MI E of Livingst · Structure no. 060321800000000

Built
1901
124 years old, rebuilt 1969
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
—
2011 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Niehaus Rd/ TR 326 over Silver Creek is a steel stringer/multi-beam or girder carrying Niehaus Rd/ TR 326 over Silver Creek in Madison County, Illinois. It was built in 1901 and reconstructed in 1969, so it is 124 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. Its operating status is: posted for load restriction.

No traffic count is recorded. The structure is 40 ft (12.3 m) long and 12 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNiehaus Rd/ TR 326
CrossesSilver Creek
Location2.5 MI E of Livingst
RouteCounty Highway 0
CountyMadison County
StateIllinois
Coordinates38.96559, -89.70777
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.1 US tons
Inventory rating21.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadH 15
Structure length40 ft (12.3 m)
Longest span39 ft (11.9 m)
Deck width12 ft (3.7 m)
Roadway width11 ft (3.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic11 by 2046
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$26,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Niehaus Rd/ TR 326 over Silver Creek built?

It was built in 1901, making it 124 years old in 2025. It was reconstructed in 1969.

What condition is Niehaus Rd/ TR 326 over Silver 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 May 2023.

How much traffic does Niehaus Rd/ TR 326 over Silver Creek carry?

No traffic count is recorded for this structure.

How long is Niehaus Rd/ TR 326 over Silver Creek?

The structure is 40 ft (12.3 m) long with a longest span of 39 ft (11.9 m) and a deck 12 ft wide.

Who owns Niehaus Rd/ TR 326 over Silver Creek?

It is owned by the Town or Township Highway Agency.