US Bridges

County Highway 08 over Hermon Creek

Good

Knox County, Illinois · S.CTR-18-T9NR2E · Structure no. 048500800000000

Built
1972
53 years old
Condition
Good
inspected February 2024
Type
Culvert
Steel
Length
33 ft
3 main spans
Daily traffic
425
2022 count
Owner
County
County Highway Agency

About this bridge

County Highway 08 over Hermon Creek is a steel culvert carrying County Highway 08 over Hermon Creek in Knox County, Illinois. It was built in 1972, so it is 53 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 425 vehicles a day, roughly 19% of them trucks, projected to reach 505 by 2046. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Highway 08
CrossesHermon Creek
LocationS.CTR-18-T9NR2E
RouteCounty Highway 0
Coordinates40.75866, -90.32013
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2024
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 rating98.2 US tons
Inventory rating98.2 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic425 (2022)
Projected traffic505 by 2046
Trucks19%
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 County Highway 08 over Hermon Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is County Highway 08 over Hermon 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 2024.

How much traffic does County Highway 08 over Hermon Creek carry?

About 425 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is County Highway 08 over Hermon Creek?

The structure is 33 ft (10.1 m) long with a longest span of 9 ft (2.7 m).

Who owns County Highway 08 over Hermon Creek?

It is owned by the County Highway Agency.