US Bridges

Mallard Rd. over Unnamed Stream

Fair

Brown County, Kansas · 10.5W 0.5S of White Cloud · Structure no. 000071015003044

Built
1999
26 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
38 ft
1 main span
Daily traffic
45
2016 count
Owner
County
County Highway Agency

About this bridge

Mallard Rd. over Unnamed Stream is a steel stringer/multi-beam or girder carrying Mallard Rd. over Unnamed Stream in Brown County, Kansas. It was built in 1999, so it is 26 years old, younger 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 45 vehicles a day, projected to reach 50 by 2044. The structure is 38 ft (11.6 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMallard Rd.
CrossesUnnamed Stream
Location10.5W 0.5S of White Cloud
RouteCounty Highway 0
CountyBrown County
StateKansas
Coordinates39.96623, -95.50845
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
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 evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span37 ft (11.3 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic45 (2016)
Projected traffic50 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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$56,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mallard Rd. over Unnamed Stream built?

It was built in 1999, making it 26 years old in 2025.

What condition is Mallard Rd. over Unnamed Stream 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 January 2024.

How much traffic does Mallard Rd. over Unnamed Stream carry?

About 45 vehicles per day (2016 count).

How long is Mallard Rd. over Unnamed Stream?

The structure is 38 ft (11.6 m) long with a longest span of 37 ft (11.3 m) and a deck 25 ft wide.

Who owns Mallard Rd. over Unnamed Stream?

It is owned by the County Highway Agency.