US Bridges

Local RD 21.7-I.0 over Marmaton River

Good

Allen County, Kansas · 0.5N 1.7E of Moran · Structure no. 000011057705860

Built
1973
52 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
60
2006 count
Owner
County
County Highway Agency

About this bridge

Local RD 21.7-I.0 over Marmaton River is a concrete culvert carrying Local RD 21.7-I.0 over Marmaton River in Allen County, Kansas. It was built in 1973, so it is 52 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 60 vehicles a day, projected to reach 60 by 2044. The structure is 29 ft (8.7 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLocal RD 21.7-I.0
CrossesMarmaton River
Location0.5N 1.7E of Moran
RouteCounty Highway 0
CountyAllen County
StateKansas
Coordinates37.92141, -95.14001
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.8 US tons
Inventory rating21.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length29 ft (8.7 m)
Longest span14 ft (4.2 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 traffic60 (2006)
Projected traffic60 by 2044
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 Local RD 21.7-I.0 over Marmaton River built?

It was built in 1973, making it 52 years old in 2025.

What condition is Local RD 21.7-I.0 over Marmaton 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 June 2024.

How much traffic does Local RD 21.7-I.0 over Marmaton River carry?

About 60 vehicles per day (2006 count).

How long is Local RD 21.7-I.0 over Marmaton River?

The structure is 29 ft (8.7 m) long with a longest span of 14 ft (4.2 m) and a deck 28 ft wide.

Who owns Local RD 21.7-I.0 over Marmaton River?

It is owned by the County Highway Agency.