US Bridges

RD 330 (N.1-7.0) over Hill Creek

FairPosted for load

Lyon County, Kansas · 0.5W of Admire · Structure no. 000560951104880

Built
1930
95 years old
Condition
Fair
inspected February 2023
Type
Culvert
Masonry
Length
50 ft
1 main span
Daily traffic
20
2007 count
Owner
County
County Highway Agency

About this bridge

RD 330 (N.1-7.0) over Hill Creek is a masonry culvert carrying RD 330 (N.1-7.0) over Hill Creek in Lyon County, Kansas. It was built in 1930, so it is 95 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 20 vehicles a day, projected to reach 20 by 2043. The structure is 50 ft (15.1 m) long and 19 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesRD 330 (N.1-7.0)
CrossesHill Creek
Location0.5W of Admire
RouteCounty Highway 0
CountyLyon County
StateKansas
Coordinates38.637, -96.11531
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating21.9 US tons
Inventory rating21.9 US tons

Structure

Structure typeCulvert
MaterialMasonry
DeckOther
Main spans1
Design loadHS 20
Structure length50 ft (15.1 m)
Longest span49 ft (15 m)
Deck width19 ft (5.7 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic20 (2007)
Projected traffic20 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$69,000
NavigationNo navigation control on waterway

Frequently asked questions

When was RD 330 (N.1-7.0) over Hill Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is RD 330 (N.1-7.0) over Hill Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2023.

How much traffic does RD 330 (N.1-7.0) over Hill Creek carry?

About 20 vehicles per day (2007 count).

How long is RD 330 (N.1-7.0) over Hill Creek?

The structure is 50 ft (15.1 m) long with a longest span of 49 ft (15 m) and a deck 19 ft wide.

Who owns RD 330 (N.1-7.0) over Hill Creek?

It is owned by the County Highway Agency.