US Bridges

340th St. over Unnamed Stream

Good

Brown County, Kansas · 1.5N 1.0E of Reserve · Structure no. 000071011203000

Built
2010
15 years old
Condition
Good
inspected January 2024
Type
Slab
Concrete Continuous
Length
113 ft
3 main spans
Daily traffic
15
2016 count
Owner
County
County Highway Agency

About this bridge

340th St. over Unnamed Stream is a concrete continuous slab carrying 340th St. over Unnamed Stream in Brown County, Kansas. It was built in 2010, so it is 15 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15 vehicles a day, projected to reach 20 by 2044. The structure is 113 ft (34.4 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries340th St.
CrossesUnnamed Stream
Location1.5N 1.0E of Reserve
RouteCounty Highway 0
CountyBrown County
StateKansas
Coordinates40.0001, -95.5402
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.1 US tons
Inventory rating50 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length113 ft (34.4 m)
Longest span44 ft (13.4 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic15 (2016)
Projected traffic20 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 340th St. over Unnamed Stream built?

It was built in 2010, making it 15 years old in 2025.

What condition is 340th St. over Unnamed Stream 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 2024.

How much traffic does 340th St. over Unnamed Stream carry?

About 15 vehicles per day (2016 count).

How long is 340th St. over Unnamed Stream?

The structure is 113 ft (34.4 m) long with a longest span of 44 ft (13.4 m) and a deck 28 ft wide.

Who owns 340th St. over Unnamed Stream?

It is owned by the County Highway Agency.