US Bridges

Scott Drive SB over Ash Creek

Good

St. Clair County, Illinois · 0.4 M N JCT Ill 161 · Structure no. 082009700000000

Built
1952
73 years old, rebuilt 2007
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
3,700
2023 count
Owner
State
State Highway Agency

About this bridge

Scott Drive SB over Ash Creek is a prestressed concrete box beam or girders - multiple carrying Scott Drive SB over Ash Creek in St. Clair County, Illinois. It was built in 1952 and reconstructed in 2007, so it is 73 years old, older 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 3,700 vehicles a day, roughly 3% of them trucks, projected to reach 3,788 by 2046. The structure is 32 ft (9.8 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesScott Drive SB
CrossesAsh Creek
Location0.4 M N JCT Ill 161
Coordinates38.53337, -89.86446
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating40 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width44 ft (13.5 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,700 (2023)
Projected traffic3,788 by 2046
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$228,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Scott Drive SB over Ash Creek built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 2007.

What condition is Scott Drive SB over Ash 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 September 2024.

How much traffic does Scott Drive SB over Ash Creek carry?

About 3,700 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Scott Drive SB over Ash Creek?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 44 ft wide.

Who owns Scott Drive SB over Ash Creek?

It is owned by the State Highway Agency.