US Bridges

US-56 HWY over Martin Creek

Good

Johnson County, Kansas · 2.76 MI E Douglas Coln · Structure no. 999905600462961

Built
1994
31 years old
Condition
Good
inspected July 2024
Type
Slab
Concrete Continuous
Length
113 ft
3 main spans
Daily traffic
4,500
2023 count
Owner
State
State Highway Agency

About this bridge

US-56 HWY over Martin Creek is a concrete continuous slab carrying US-56 HWY over Martin Creek in Johnson County, Kansas. It was built in 1994, so it is 31 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 4,500 vehicles a day, roughly 6% of them trucks, projected to reach 6,181 by 2044. The structure is 113 ft (34.3 m) long and 44 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesUS-56 HWY
CrossesMartin Creek
Location2.76 MI E Douglas Coln
RouteU.S. Route 56
StateKansas
Coordinates38.76778, -95.00528
Functional classRural Principal Arterial - Other

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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment2: Basically intolerable, requiring high priority of replacement
Operating rating83 US tons
Inventory rating50 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length113 ft (34.3 m)
Longest span44 ft (13.4 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,500 (2023)
Projected traffic6,181 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US-56 HWY over Martin Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is US-56 HWY over Martin 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 July 2024.

How much traffic does US-56 HWY over Martin Creek carry?

About 4,500 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is US-56 HWY over Martin Creek?

The structure is 113 ft (34.3 m) long with a longest span of 44 ft (13.4 m) and a deck 44 ft wide.

Who owns US-56 HWY over Martin Creek?

It is owned by the State Highway Agency.