US Bridges

Local T-312-1 over Rittenhouse Branch

FairPosted for load

Doniphan County, Kansas · 1.0E 2.5S of Highland · Structure no. 000221043003244

Built
1965
60 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
53 ft
2 main spans
Daily traffic
25
2005 count
Owner
County
County Highway Agency

About this bridge

Local T-312-1 over Rittenhouse Branch is a steel stringer/multi-beam or girder carrying Local T-312-1 over Rittenhouse Branch in Doniphan County, Kansas. It was built in 1965, so it is 60 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 5 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 25 vehicles a day, projected to reach 25 by 2045. The structure is 53 ft (16.2 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLocal T-312-1
CrossesRittenhouse Branch
Location1.0E 2.5S of Highland
RouteCounty Highway 0
CountyDoniphan County
StateKansas
Coordinates39.82068, -95.24622
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating27.1 US tons
Inventory rating16.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans2
Design loadUnknown
Structure length53 ft (16.2 m)
Longest span32 ft (9.8 m)
Deck width20 ft (6 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic25 (2005)
Projected traffic25 by 2045
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$265,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Local T-312-1 over Rittenhouse Branch built?

It was built in 1965, making it 60 years old in 2025.

What condition is Local T-312-1 over Rittenhouse Branch 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 2025.

How much traffic does Local T-312-1 over Rittenhouse Branch carry?

About 25 vehicles per day (2005 count).

How long is Local T-312-1 over Rittenhouse Branch?

The structure is 53 ft (16.2 m) long with a longest span of 32 ft (9.8 m) and a deck 20 ft wide.

Who owns Local T-312-1 over Rittenhouse Branch?

It is owned by the County Highway Agency.