US Bridges

Il 15 over Abandoned RR Salt Storag

Fair

St. Clair County, Illinois · 2 MI NW of Il 159 · Structure no. 082252500000000

Built
1959
66 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete
Length
27 ft
1 main span
Daily traffic
21,800
2023 count
Owner
State
State Highway Agency

About this bridge

Il 15 over Abandoned RR Salt Storag is a concrete culvert carrying Il 15 over Abandoned RR Salt Storag in St. Clair County, Illinois. It was built in 1959, so it is 66 years old, older 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 5 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 21,800 vehicles a day, roughly 9% of them trucks, projected to reach 20,806 by 2046. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesIl 15
CrossesAbandoned RR Salt Storag
Location2 MI NW of Il 159
RouteState Highway 15
Coordinates38.51012, -90.01203
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,800 (2023)
Projected traffic20,806 by 2046
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed1.9 mi (3 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Il 15 over Abandoned RR Salt Storag built?

It was built in 1959, making it 66 years old in 2025.

What condition is Il 15 over Abandoned RR Salt Storag 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 March 2024.

How much traffic does Il 15 over Abandoned RR Salt Storag carry?

About 21,800 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Il 15 over Abandoned RR Salt Storag?

The structure is 27 ft (8.2 m) long with a longest span of 24 ft (7.3 m).

Who owns Il 15 over Abandoned RR Salt Storag?

It is owned by the State Highway Agency.