US Bridges

Pryor Drive over Tributary Silver Creek

Fair

St. Clair County, Illinois · 50 North of Air Guard Wa · Structure no. AFILVDYD06057

Built
2010
15 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
2,500
2017 count
Owner
Federal
Air Force

About this bridge

Pryor Drive over Tributary Silver Creek is a concrete culvert carrying Pryor Drive over Tributary Silver Creek in St. Clair County, Illinois. It was built in 2010, so it is 15 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 2,500 vehicles a day, projected to reach 3,000 by 2037. The structure is 23 ft (7.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesPryor Drive
CrossesTributary Silver Creek
Location50 North of Air Guard Wa
RouteFederal Lands Road 0
CountySt. Clair County
StateIllinois
Coordinates38.54938, -89.84587
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (7.1 m)
Longest span10 ft (3.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2017)
Projected traffic3,000 by 2037
Trucks—
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

OwnerAir Force
Maintained byAir Force
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$25,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pryor Drive over Tributary Silver Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is Pryor Drive over Tributary Silver 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 2024.

How much traffic does Pryor Drive over Tributary Silver Creek carry?

About 2,500 vehicles per day (2017 count).

How long is Pryor Drive over Tributary Silver Creek?

The structure is 23 ft (7.1 m) long with a longest span of 10 ft (3.2 m).

Who owns Pryor Drive over Tributary Silver Creek?

It is owned by the Air Force.