US Bridges

FAS 607 over Plum Creek

Good

Scott County, Illinois · .25 MI S. of Merrit · Structure no. 086300600000000

Built
1973
52 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
175
2020 count
Owner
County
County Highway Agency

About this bridge

FAS 607 over Plum Creek is a concrete continuous culvert carrying FAS 607 over Plum Creek in Scott County, Illinois. It was built in 1973, so it is 52 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 175 vehicles a day, roughly 33% of them trucks, projected to reach 177 by 2046. The structure is 23 ft (7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFAS 607
CrossesPlum Creek
Location.25 MI S. of Merrit
RouteCounty Highway 0
Coordinates39.70859, -90.41444
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.8 US tons
Inventory rating46.4 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2020)
Projected traffic177 by 2046
Trucks33%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 FAS 607 over Plum Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is FAS 607 over Plum 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 2023.

How much traffic does FAS 607 over Plum Creek carry?

About 175 vehicles per day (2020 count), of which roughly 33% are trucks.

How long is FAS 607 over Plum Creek?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns FAS 607 over Plum Creek?

It is owned by the County Highway Agency.