US Bridges

SW 6th over Martin Cr.

Good

Shawnee County, Kansas · 108.81M E. of SW6th & Mac · Structure no. 427950895290D7E

Built
1975
50 years old
Condition
Good
inspected October 2023
Type
Slab
Concrete Continuous
Length
54 ft
2 main spans
Daily traffic
14,695
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

SW 6th over Martin Cr. is a concrete continuous slab carrying SW 6th over Martin Cr. in Shawnee County, Kansas. It was built in 1975, so it is 50 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 14,695 vehicles a day, roughly 2% of them trucks, projected to reach 15,728 by 2043. The structure is 54 ft (16.5 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSW 6th
CrossesMartin Cr.
Location108.81M E. of SW6th & Mac
RouteCity Street 5290
CountyShawnee County
StateKansas
Coordinates39.05864, -95.70462
Functional classUrban Minor Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating45.3 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span25 ft (7.5 m)
Deck width59 ft (18 m)
Roadway width48 ft (14.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic14,695 (2017)
Projected traffic15,728 by 2043
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SW 6th over Martin Cr. built?

It was built in 1975, making it 50 years old in 2025.

What condition is SW 6th over Martin Cr. 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 October 2023.

How much traffic does SW 6th over Martin Cr. carry?

About 14,695 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is SW 6th over Martin Cr.?

The structure is 54 ft (16.5 m) long with a longest span of 25 ft (7.5 m) and a deck 59 ft wide.

Who owns SW 6th over Martin Cr.?

It is owned by the City or Municipal Highway Agency.