US Bridges

Frank Scott Pkwy W over Unnamed Tributary

Good

St. Clair County, Illinois · 0.2 MI West Ch 81 · Structure no. 082309700000000

Built
2001
24 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
12,500
2023 count
Owner
County
County Highway Agency

About this bridge

Frank Scott Pkwy W over Unnamed Tributary is a concrete culvert carrying Frank Scott Pkwy W over Unnamed Tributary in St. Clair County, Illinois. It was built in 2001, so it is 24 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 12,500 vehicles a day, roughly 4% of them trucks, projected to reach 12,120 by 2046. The structure is 24 ft (7.2 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFrank Scott Pkwy W
CrossesUnnamed Tributary
Location0.2 MI West Ch 81
Coordinates38.57038, -89.92517
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.2 m)
Longest span10 ft (3 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,500 (2023)
Projected traffic12,120 by 2046
Trucks4%
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

OwnerCounty Highway Agency
Maintained byCounty 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 Frank Scott Pkwy W over Unnamed Tributary built?

It was built in 2001, making it 24 years old in 2025.

What condition is Frank Scott Pkwy W over Unnamed Tributary 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 April 2024.

How much traffic does Frank Scott Pkwy W over Unnamed Tributary carry?

About 12,500 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Frank Scott Pkwy W over Unnamed Tributary?

The structure is 24 ft (7.2 m) long with a longest span of 10 ft (3 m) and a deck 24 ft wide.

Who owns Frank Scott Pkwy W over Unnamed Tributary?

It is owned by the County Highway Agency.