US Bridges

Gravel Pike over Old Mill Race Creek

Fair

Montgomery County, Pennsylvania · 1.4MI.S.PERKIOMENV.06K09 · Structure no. 000000000027166

Built
1967
58 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
7,957
2024 count
Owner
State
State Highway Agency

About this bridge

Gravel Pike over Old Mill Race Creek is a concrete culvert carrying Gravel Pike over Old Mill Race Creek in Montgomery County, Pennsylvania. It was built in 1967, so it is 58 years old, older 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 6 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 7,957 vehicles a day, roughly 8% of them trucks, projected to reach 8,435 by 2032. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesGravel Pike
CrossesOld Mill Race Creek
Location1.4MI.S.PERKIOMENV.06K09
RouteState Highway 29
Coordinates40.32417, -75.47889
Functional classUrban Other Principal Arterial

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating48 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,957 (2024)
Projected traffic8,435 by 2032
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Gravel Pike over Old Mill Race Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is Gravel Pike over Old Mill Race 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 July 2023.

How much traffic does Gravel Pike over Old Mill Race Creek carry?

About 7,957 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Gravel Pike over Old Mill Race Creek?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m).

Who owns Gravel Pike over Old Mill Race Creek?

It is owned by the State Highway Agency.