US Bridges

3375 RD Mile 20 over Elk River

GoodPosted for load

Montgomery County, Kansas · 2.0N 1.0W of Independence · Structure no. 000000000630790

Built
2000
25 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
217 ft
3 main spans
Daily traffic
434
2017 count
Owner
County
County Highway Agency

About this bridge

3375 RD Mile 20 over Elk River is a prestressed concrete continuous stringer/multi-beam or girder carrying 3375 RD Mile 20 over Elk River in Montgomery County, Kansas. It was built in 2000, so it is 25 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. Its operating status is: posted for load restriction.

It carries about 434 vehicles a day, roughly 5% of them trucks, projected to reach 521 by 2039. The structure is 217 ft (66 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries3375 RD Mile 20
CrossesElk River
Location2.0N 1.0W of Independence
RouteCounty Highway 2171
StateKansas
Coordinates37.27667, -95.75194
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than 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 alignment7: Better than present minimum criteria
Operating rating81.4 US tons
Inventory rating48.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length217 ft (66 m)
Longest span89 ft (27 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic434 (2017)
Projected traffic521 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 3375 RD Mile 20 over Elk River built?

It was built in 2000, making it 25 years old in 2025.

What condition is 3375 RD Mile 20 over Elk River 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 3375 RD Mile 20 over Elk River carry?

About 434 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is 3375 RD Mile 20 over Elk River?

The structure is 217 ft (66 m) long with a longest span of 89 ft (27 m) and a deck 30 ft wide.

Who owns 3375 RD Mile 20 over Elk River?

It is owned by the County Highway Agency.