US Bridges

FAS 1408-CH 17 over Negro Creek

Good

Warren County, Illinois · SE-21-T9NR2W · Structure no. 094302600000000

Built
1970
55 years old
Condition
Good
inspected January 2025
Type
Culvert
Steel
Length
47 ft
2 main spans
Daily traffic
250
2021 count
Owner
County
County Highway Agency

About this bridge

FAS 1408-CH 17 over Negro Creek is a steel culvert carrying FAS 1408-CH 17 over Negro Creek in Warren County, Illinois. It was built in 1970, so it is 55 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 250 vehicles a day, roughly 8% of them trucks, projected to reach 253 by 2046. The structure is 47 ft (14.2 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFAS 1408-CH 17
CrossesNegro Creek
LocationSE-21-T9NR2W
RouteCounty Highway 0
Coordinates40.74778, -90.61576
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 inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length47 ft (14.2 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2021)
Projected traffic253 by 2046
Trucks8%
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 1408-CH 17 over Negro Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is FAS 1408-CH 17 over Negro 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 January 2025.

How much traffic does FAS 1408-CH 17 over Negro Creek carry?

About 250 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is FAS 1408-CH 17 over Negro Creek?

The structure is 47 ft (14.2 m) long with a longest span of 20 ft (6.1 m).

Who owns FAS 1408-CH 17 over Negro Creek?

It is owned by the County Highway Agency.