US Bridges

So. Penn. over Rock Creek

FairPosted for load

Montgomery County, Kansas · S. Edge of Independence · Structure no. 000630997206828

Built
1911
114 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
50 ft
1 main span
Daily traffic
375
2010 count
Owner
County
County Highway Agency

About this bridge

So. Penn. over Rock Creek is a concrete culvert carrying So. Penn. over Rock Creek in Montgomery County, Kansas. It was built in 1911, so it is 114 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 375 vehicles a day, roughly 3% of them trucks, projected to reach 450 by 2039. The structure is 50 ft (15.2 m) long and 18 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSo. Penn.
CrossesRock Creek
LocationS. Edge of Independence
RouteCounty Highway 0
CountyMontgomery County
StateKansas
Coordinates37.21422, -95.70731
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating11.8 US tons
Inventory rating11.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span50 ft (15.2 m)
Deck width18 ft (5.6 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic375 (2010)
Projected traffic450 by 2039
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$280,000
NavigationNo navigation control on waterway

Frequently asked questions

When was So. Penn. over Rock Creek built?

It was built in 1911, making it 114 years old in 2025.

What condition is So. Penn. over Rock Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does So. Penn. over Rock Creek carry?

About 375 vehicles per day (2010 count), of which roughly 3% are trucks.

How long is So. Penn. over Rock Creek?

The structure is 50 ft (15.2 m) long with a longest span of 50 ft (15.2 m) and a deck 18 ft wide.

Who owns So. Penn. over Rock Creek?

It is owned by the County Highway Agency.