US Bridges

Division ST over Prairie Creek

Good

LaSalle County, Illinois · 1/2 Blk E of Walnut · Structure no. 050802500000000

Built
2012
13 years old
Condition
Good
inspected August 2023
Type
Slab
Concrete
Length
51 ft
3 main spans
Daily traffic
425
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Division ST over Prairie Creek is a concrete slab carrying Division ST over Prairie Creek in LaSalle County, Illinois. It was built in 2012, so it is 13 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 425 vehicles a day, roughly 11% of them trucks, projected to reach 429 by 2046. The structure is 51 ft (15.5 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesDivision ST
CrossesPrairie Creek
Location1/2 Blk E of Walnut
RouteCity Street 0
Coordinates41.13742, -88.81963
Functional classUrban 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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length51 ft (15.5 m)
Longest span51 ft (15.5 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic425 (2020)
Projected traffic429 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 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 Division ST over Prairie Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Division ST 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 August 2023.

How much traffic does Division ST over Prairie Creek carry?

About 425 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is Division ST over Prairie Creek?

The structure is 51 ft (15.5 m) long with a longest span of 51 ft (15.5 m) and a deck 28 ft wide.

Who owns Division ST over Prairie Creek?

It is owned by the City or Municipal Highway Agency.