US Bridges

Minor 71 U.9-1400 over Unnamed Stream

PoorPosted for load

Morris County, Kansas · 4.0E 0.1N of Wilsey · Structure no. 000640901004869

Built
1935
90 years old
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
23 ft
1 main span
Daily traffic
60
2011 count
Owner
County
County Highway Agency

About this bridge

Minor 71 U.9-1400 over Unnamed Stream is a steel stringer/multi-beam or girder carrying Minor 71 U.9-1400 over Unnamed Stream in Morris County, Kansas. It was built in 1935, so it is 90 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 60 vehicles a day, projected to reach 70 by 2040. The structure is 23 ft (7 m) long and 23 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesMinor 71 U.9-1400
CrossesUnnamed Stream
Location4.0E 0.1N of Wilsey
RouteCounty Highway 6407
CountyMorris County
StateKansas
Coordinates38.63969, -96.59732
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating28.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length23 ft (7 m)
Longest span20 ft (6 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic60 (2011)
Projected traffic70 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$130,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Minor 71 U.9-1400 over Unnamed Stream built?

It was built in 1935, making it 90 years old in 2025.

What condition is Minor 71 U.9-1400 over Unnamed Stream in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Minor 71 U.9-1400 over Unnamed Stream carry?

About 60 vehicles per day (2011 count).

How long is Minor 71 U.9-1400 over Unnamed Stream?

The structure is 23 ft (7 m) long with a longest span of 20 ft (6 m) and a deck 23 ft wide.

Who owns Minor 71 U.9-1400 over Unnamed Stream?

It is owned by the County Highway Agency.