US Bridges

School House Road over Prairie Creek

Fair

Will County, Illinois · 0.8MIS.MANHATTAN-MON · Structure no. 099455500000000

Built
1990
35 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
39 ft
1 main span
Daily traffic
75
2008 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

School House Road over Prairie Creek is a prestressed concrete box beam or girders - multiple carrying School House Road over Prairie Creek in Will County, Illinois. It was built in 1990, so it is 35 years old, younger 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.

It carries about 75 vehicles a day, roughly 13% of them trucks, projected to reach 108 by 2046. The structure is 39 ft (11.8 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSchool House Road
CrossesPrairie Creek
Location0.8MIS.MANHATTAN-MON
CountyWill County
StateIllinois
Coordinates41.41433, -87.92225
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length39 ft (11.8 m)
Longest span37 ft (11.2 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2008)
Projected traffic108 by 2046
Trucks13%
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 School House Road over Prairie Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is School House Road over Prairie 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 April 2023.

How much traffic does School House Road over Prairie Creek carry?

About 75 vehicles per day (2008 count), of which roughly 13% are trucks.

How long is School House Road over Prairie Creek?

The structure is 39 ft (11.8 m) long with a longest span of 37 ft (11.2 m) and a deck 24 ft wide.

Who owns School House Road over Prairie Creek?

It is owned by the Town or Township Highway Agency.