US Bridges

College ST over Piles Fork

Poor

Jackson County, Illinois · City Hall Carbondale · Structure no. 039610100000000

Built
1971
54 years old
Condition
Poor
inspected November 2022
Type
Culvert
Concrete Continuous
Length
30 ft
2 main spans
Daily traffic
1,700
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

College ST over Piles Fork is a concrete continuous culvert carrying College ST over Piles Fork in Jackson County, Illinois. It was built in 1971, so it is 54 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,700 vehicles a day, roughly 6% of them trucks, projected to reach 2,374 by 2046. The structure is 30 ft (9.1 m) long and 49 ft wide.

Location

Open in Google Maps
CarriesCollege ST
CrossesPiles Fork
LocationCity Hall Carbondale
RouteCity Street 0
CountyJackson County
StateIllinois
Coordinates37.72225, -89.20634
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating33.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span14 ft (4.3 m)
Deck width49 ft (14.8 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2022)
Projected traffic2,374 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 College ST over Piles Fork built?

It was built in 1971, making it 54 years old in 2025.

What condition is College ST over Piles Fork in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2022.

How much traffic does College ST over Piles Fork carry?

About 1,700 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is College ST over Piles Fork?

The structure is 30 ft (9.1 m) long with a longest span of 14 ft (4.3 m) and a deck 49 ft wide.

Who owns College ST over Piles Fork?

It is owned by the City or Municipal Highway Agency.