US Bridges

Z Road over Wolf Creek

Good

Hamilton County, Kansas · 11.0S 1.0W of Kendall · Structure no. 000000000380020

Built
1966
59 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
36 ft
3 main spans
Daily traffic
40
2022 count
Owner
County
County Highway Agency

About this bridge

Z Road over Wolf Creek is a concrete culvert carrying Z Road over Wolf Creek in Hamilton County, Kansas. It was built in 1966, so it is 59 years old, older 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 40 vehicles a day, roughly 10% of them trucks, projected to reach 35 by 2041. The structure is 36 ft (11.1 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesZ Road
CrossesWolf Creek
Location11.0S 1.0W of Kendall
RouteCounty Highway 308
StateKansas
Coordinates37.76467, -101.56375
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating38.9 US tons
Inventory rating23.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length36 ft (11.1 m)
Longest span11 ft (3.5 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic40 (2022)
Projected traffic35 by 2041
Trucks10%
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 Z Road over Wolf Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is Z Road over Wolf 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 November 2023.

How much traffic does Z Road over Wolf Creek carry?

About 40 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Z Road over Wolf Creek?

The structure is 36 ft (11.1 m) long with a longest span of 11 ft (3.5 m) and a deck 31 ft wide.

Who owns Z Road over Wolf Creek?

It is owned by the County Highway Agency.