US Bridges

RD 20 941.5-550.0 over Moon Branch Creek

Good

Lyon County, Kansas · 5.0S 2.0W of Olpe · Structure no. 000560941505500

Built
1987
38 years old
Condition
Good
inspected February 2023
Type
Slab
Concrete Continuous
Length
110 ft
3 main spans
Daily traffic
40
2007 count
Owner
County
County Highway Agency

About this bridge

RD 20 941.5-550.0 over Moon Branch Creek is a concrete continuous slab carrying RD 20 941.5-550.0 over Moon Branch Creek in Lyon 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 40 vehicles a day, projected to reach 40 by 2043. The structure is 110 ft (33.6 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesRD 20 941.5-550.0
CrossesMoon Branch Creek
Location5.0S 2.0W of Olpe
RouteCounty Highway 0
CountyLyon County
StateKansas
Coordinates38.18703, -96.19986
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64.2 US tons
Inventory rating38.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length110 ft (33.6 m)
Longest span43 ft (13.1 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic40 (2007)
Projected traffic40 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$176,000
NavigationNo navigation control on waterway

Frequently asked questions

When was RD 20 941.5-550.0 over Moon Branch Creek built?

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

What condition is RD 20 941.5-550.0 over Moon Branch 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 February 2023.

How much traffic does RD 20 941.5-550.0 over Moon Branch Creek carry?

About 40 vehicles per day (2007 count).

How long is RD 20 941.5-550.0 over Moon Branch Creek?

The structure is 110 ft (33.6 m) long with a longest span of 43 ft (13.1 m) and a deck 26 ft wide.

Who owns RD 20 941.5-550.0 over Moon Branch Creek?

It is owned by the County Highway Agency.