US Bridges

Wasson Street over Prairie Creek

Good

LaSalle County, Illinois · W of Bronson Str · Structure no. 050801800000000

Built
1985
40 years old
Condition
Good
inspected May 2023
Type
Slab
Concrete Continuous
Length
70 ft
3 main spans
Daily traffic
775
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Wasson Street over Prairie Creek is a concrete continuous slab carrying Wasson Street over Prairie Creek in LaSalle County, Illinois. It was built in 1985, so it is 40 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 775 vehicles a day, roughly 3% of them trucks, projected to reach 783 by 2046. The structure is 70 ft (21.3 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWasson Street
CrossesPrairie Creek
LocationW of Bronson Str
Coordinates41.13265, -88.82907
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
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 geometry6: Equal to present minimum criteria
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 width38 ft (11.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic775 (2020)
Projected traffic783 by 2046
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Wasson Street over Prairie Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Wasson Street over Prairie 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 May 2023.

How much traffic does Wasson Street over Prairie Creek carry?

About 775 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Wasson Street over Prairie Creek?

The structure is 70 ft (21.3 m) long with a longest span of 26 ft (7.9 m) and a deck 38 ft wide.

Who owns Wasson Street over Prairie Creek?

It is owned by the City or Municipal Highway Agency.