US Bridges

US 51 (fap 322) over Webster Creek

Good

Marion County, Illinois · .8 MI N Jeffersn C L · Structure no. 061200400000000

Built
1960
65 years old
Condition
Good
inspected January 2023
Type
Culvert
Concrete Continuous
Length
33 ft
3 main spans
Daily traffic
7,200
2023 count
Owner
State
State Highway Agency

About this bridge

US 51 (fap 322) over Webster Creek is a concrete continuous culvert carrying US 51 (fap 322) over Webster Creek in Marion 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 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 7,200 vehicles a day, roughly 11% of them trucks, projected to reach 3,232 by 2046. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 51 (fap 322)
CrossesWebster Creek
Location.8 MI N Jeffersn C L
RouteU.S. Route 51
Coordinates38.48343, -89.14419
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.7 US tons
Inventory rating45.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,200 (2023)
Projected traffic3,232 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 51 (fap 322) over Webster Creek built?

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

What condition is US 51 (fap 322) over Webster 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 2023.

How much traffic does US 51 (fap 322) over Webster Creek carry?

About 7,200 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is US 51 (fap 322) over Webster Creek?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m).

Who owns US 51 (fap 322) over Webster Creek?

It is owned by the State Highway Agency.