US Bridges

Rs 1100 9.7-T.4 over Mill Creek

Good

Washington County, Kansas · 3.3N 2.5E of Washington · Structure no. 000000001010490

Built
1987
38 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
199 ft
3 main spans
Daily traffic
160
2014 count
Owner
County
County Highway Agency

About this bridge

Rs 1100 9.7-T.4 over Mill Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Rs 1100 9.7-T.4 over Mill Creek in Washington County, Kansas. It was built in 1987, so it is 38 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 160 vehicles a day, roughly 10% of them trucks, projected to reach 192 by 2043. The structure is 199 ft (60.7 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesRs 1100 9.7-T.4
CrossesMill Creek
Location3.3N 2.5E of Washington
RouteCounty Highway 1100
CountyWashington County
StateKansas
Coordinates39.87488, -97.0022
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.1 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length199 ft (60.7 m)
Longest span66 ft (20.1 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 traffic160 (2014)
Projected traffic192 by 2043
Trucks10%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rs 1100 9.7-T.4 over Mill Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Rs 1100 9.7-T.4 over Mill Creek 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 March 2023.

How much traffic does Rs 1100 9.7-T.4 over Mill Creek carry?

About 160 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is Rs 1100 9.7-T.4 over Mill Creek?

The structure is 199 ft (60.7 m) long with a longest span of 66 ft (20.1 m) and a deck 28 ft wide.

Who owns Rs 1100 9.7-T.4 over Mill Creek?

It is owned by the County Highway Agency.