US Bridges

NW 30th RD over Sand Creek

Fair

Harper County, Kansas · 2.0N of Chrisfield · Structure no. 000390711606860

Built
1925
100 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete Continuous
Length
51 ft
3 main spans
Daily traffic
10
2021 count
Owner
County
County Highway Agency

About this bridge

NW 30th RD over Sand Creek is a concrete continuous slab carrying NW 30th RD over Sand Creek in Harper County, Kansas. It was built in 1925, so it is 100 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.

It carries about 10 vehicles a day, projected to reach 10 by 2043. The structure is 51 ft (15.6 m) long and 17 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNW 30th RD
CrossesSand Creek
Location2.0N of Chrisfield
RouteCounty Highway 0
CountyHarper County
StateKansas
Coordinates37.19607, -98.31769
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length51 ft (15.6 m)
Longest span17 ft (5.1 m)
Deck width17 ft (5.2 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic10 (2021)
Projected traffic10 by 2043
Trucks0%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$66,000
NavigationNo navigation control on waterway

Frequently asked questions

When was NW 30th RD over Sand Creek built?

It was built in 1925, making it 100 years old in 2025.

What condition is NW 30th RD over Sand 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 April 2023.

How much traffic does NW 30th RD over Sand Creek carry?

About 10 vehicles per day (2021 count).

How long is NW 30th RD over Sand Creek?

The structure is 51 ft (15.6 m) long with a longest span of 17 ft (5.1 m) and a deck 17 ft wide.

Who owns NW 30th RD over Sand Creek?

It is owned by the County Highway Agency.