US Bridges

FAS 397 - Ch 8 over Haw Creek

Good

Knox County, Illinois · NW-4-T10NR2E · Structure no. 048500100000000

Built
1965
60 years old
Condition
Good
inspected February 2025
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
1,300
2022 count
Owner
County
County Highway Agency

About this bridge

FAS 397 - Ch 8 over Haw Creek is a concrete culvert carrying FAS 397 - Ch 8 over Haw Creek in Knox County, Illinois. It was built in 1965, so it is 60 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 1,300 vehicles a day, roughly 8% of them trucks, projected to reach 1,515 by 2046. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFAS 397 - Ch 8
CrossesHaw Creek
LocationNW-4-T10NR2E
RouteCounty Highway 0
Coordinates40.88425, -90.28671
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
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 spans2
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2022)
Projected traffic1,515 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 397 - Ch 8 over Haw Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is FAS 397 - Ch 8 over Haw 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 February 2025.

How much traffic does FAS 397 - Ch 8 over Haw Creek carry?

About 1,300 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is FAS 397 - Ch 8 over Haw Creek?

The structure is 29 ft (8.8 m) long with a longest span of 13 ft (4 m).

Who owns FAS 397 - Ch 8 over Haw Creek?

It is owned by the County Highway Agency.