US Bridges

RD 120 (R.6-120) over Stream

GoodPosted for load

Lyon County, Kansas · 6.7W 1.5N of Hartford · Structure no. 000560953605300

Built
1931
94 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
20
2007 count
Owner
County
County Highway Agency

About this bridge

RD 120 (R.6-120) over Stream is a concrete culvert carrying RD 120 (R.6-120) over Stream in Lyon County, Kansas. It was built in 1931, so it is 94 years old, older 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 20 vehicles a day, projected to reach 20 by 2043. The structure is 26 ft (7.8 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesRD 120 (R.6-120)
CrossesStream
Location6.7W 1.5N of Hartford
RouteCounty Highway 0
CountyLyon County
StateKansas
Coordinates38.33231, -96.08522
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 alignment6: Equal to present minimum criteria
Operating rating40 US tons
Inventory rating25 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length26 ft (7.8 m)
Longest span8 ft (2.4 m)
Deck width26 ft (7.8 m)
Roadway width23 ft (7 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic20 (2007)
Projected traffic20 by 2043
Trucks0%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was RD 120 (R.6-120) over Stream built?

It was built in 1931, making it 94 years old in 2025.

What condition is RD 120 (R.6-120) over Stream 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 February 2023.

How much traffic does RD 120 (R.6-120) over Stream carry?

About 20 vehicles per day (2007 count).

How long is RD 120 (R.6-120) over Stream?

The structure is 26 ft (7.8 m) long with a longest span of 8 ft (2.4 m) and a deck 26 ft wide.

Who owns RD 120 (R.6-120) over Stream?

It is owned by the County Highway Agency.