US Bridges

12.5-T.7 117 over Mill Creek

FairPosted for load

Washington County, Kansas · 2.7E 0.5N of Washington · Structure no. 001010855703225

Built
1955
70 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
127 ft
4 main spans
Daily traffic
45
2014 count
Owner
County
County Highway Agency

About this bridge

12.5-T.7 117 over Mill Creek is a steel stringer/multi-beam or girder carrying 12.5-T.7 117 over Mill Creek in Washington County, Kansas. It was built in 1955, so it is 70 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 45 vehicles a day, projected to reach 54 by 2043. The structure is 127 ft (38.8 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries12.5-T.7 117
CrossesMill Creek
Location2.7E 0.5N of Washington
RouteCounty Highway 0
CountyWashington County
StateKansas
Coordinates39.83491, -96.99927
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating35.2 US tons
Inventory rating21.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length127 ft (38.8 m)
Longest span45 ft (13.7 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic45 (2014)
Projected traffic54 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was 12.5-T.7 117 over Mill Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is 12.5-T.7 117 over Mill 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 March 2023.

How much traffic does 12.5-T.7 117 over Mill Creek carry?

About 45 vehicles per day (2014 count).

How long is 12.5-T.7 117 over Mill Creek?

The structure is 127 ft (38.8 m) long with a longest span of 45 ft (13.7 m) and a deck 22 ft wide.

Who owns 12.5-T.7 117 over Mill Creek?

It is owned by the County Highway Agency.