US Bridges

Rs 490 L-8 over Craig Creek

Good

Nemaha County, Kansas · 6.0S of Sabetha · Structure no. 000000000660190

Built
2006
19 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete
Length
117 ft
3 main spans
Daily traffic
168
2008 count
Owner
County
County Highway Agency

About this bridge

Rs 490 L-8 over Craig Creek is a concrete slab carrying Rs 490 L-8 over Craig Creek in Nemaha County, Kansas. It was built in 2006, so it is 19 years old, younger than the Kansas average of 52.8 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 168 vehicles a day, roughly 10% of them trucks, projected to reach 175 by 2044. The structure is 117 ft (35.8 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesRs 490 L-8
CrossesCraig Creek
Location6.0S of Sabetha
RouteCounty Highway 490
StateKansas
Coordinates39.81161, -95.82644
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.4 US tons
Inventory rating48.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length117 ft (35.8 m)
Longest span45 ft (13.8 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic168 (2008)
Projected traffic175 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$216,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Rs 490 L-8 over Craig Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is Rs 490 L-8 over Craig 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 March 2024.

How much traffic does Rs 490 L-8 over Craig Creek carry?

About 168 vehicles per day (2008 count), of which roughly 10% are trucks.

How long is Rs 490 L-8 over Craig Creek?

The structure is 117 ft (35.8 m) long with a longest span of 45 ft (13.8 m) and a deck 30 ft wide.

Who owns Rs 490 L-8 over Craig Creek?

It is owned by the County Highway Agency.