US Bridges

Rock Lane over Rock Park Creek

Fair

Montgomery County, Pennsylvania · 0.4MI E of State RTE 2056 · Structure no. 000000000057667

Built
1992
33 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
250
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Rock Lane over Rock Park Creek is a concrete culvert carrying Rock Lane over Rock Park Creek in Montgomery County, Pennsylvania. It was built in 1992, so it is 33 years old, younger than the Pennsylvania average of 54.8 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.

It carries about 250 vehicles a day, roughly 1% of them trucks, projected to reach 300 by 2040. The structure is 21 ft (6.4 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRock Lane
CrossesRock Park Creek
Location0.4MI E of State RTE 2056
RouteCity Street 0
CountyMontgomery County
StatePennsylvania
Coordinates40.08153, -75.13881
Functional classRural 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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83 US tons
Inventory rating50 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span20 ft (6.1 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2020)
Projected traffic300 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rock Lane over Rock Park Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Rock Lane over Rock Park 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 June 2024.

How much traffic does Rock Lane over Rock Park Creek carry?

About 250 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Rock Lane over Rock Park Creek?

The structure is 21 ft (6.4 m) long with a longest span of 20 ft (6.1 m) and a deck 28 ft wide.

Who owns Rock Lane over Rock Park Creek?

It is owned by the Town or Township Highway Agency.