US Bridges

US 56 HWY over Rock Creek

Good

Morris County, Kansas · 7.05 MI E JCT K177 · Structure no. 999905600640501

Built
2023
2 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
260 ft
4 main spans
Daily traffic
1,508
2023 count
Owner
State
State Highway Agency

About this bridge

US 56 HWY over Rock Creek is a steel continuous stringer/multi-beam or girder carrying US 56 HWY over Rock Creek in Morris County, Kansas. It was built in 2023, so it is 2 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 1,508 vehicles a day, roughly 13% of them trucks, projected to reach 1,569 by 2044. The structure is 260 ft (79.2 m) long and 46 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

CarriesUS 56 HWY
CrossesRock Creek
Location7.05 MI E JCT K177
RouteU.S. Route 56
StateKansas
Coordinates38.66667, -96.35833
Functional classRural 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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating54 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length260 ft (79.2 m)
Longest span85 ft (25.9 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,508 (2023)
Projected traffic1,569 by 2044
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 km)
TollOn a free road
National Highway SystemNo

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 Rock Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is US 56 HWY over Rock 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 October 2023.

How much traffic does US 56 HWY over Rock Creek carry?

About 1,508 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is US 56 HWY over Rock Creek?

The structure is 260 ft (79.2 m) long with a longest span of 85 ft (25.9 m) and a deck 46 ft wide.

Who owns US 56 HWY over Rock Creek?

It is owned by the State Highway Agency.