US Bridges

Johnston Avenue over Sandy Run

Fair

Montgomery County, Pennsylvania · 0.2 MI E Susquehanna RD · Structure no. 000000000057678

Built
1999
26 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
23 ft
1 main span
Daily traffic
1,000
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Johnston Avenue over Sandy Run is a concrete culvert carrying Johnston Avenue over Sandy Run in Montgomery County, Pennsylvania. It was built in 1999, so it is 26 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 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 1,000 vehicles a day, roughly 2% of them trucks, projected to reach 1,300 by 2040. The structure is 23 ft (7 m) long and 50 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesJohnston Avenue
CrossesSandy Run
Location0.2 MI E Susquehanna RD
RouteCity Street 0
CountyMontgomery County
StatePennsylvania
Coordinates40.12831, -75.13928
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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating103.9 US tons
Inventory rating61.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length23 ft (7 m)
Longest span23 ft (7 m)
Deck width50 ft (15.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2020)
Projected traffic1,300 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Johnston Avenue over Sandy Run built?

It was built in 1999, making it 26 years old in 2025.

What condition is Johnston Avenue over Sandy Run 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 Johnston Avenue over Sandy Run carry?

About 1,000 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Johnston Avenue over Sandy Run?

The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m) and a deck 50 ft wide.

Who owns Johnston Avenue over Sandy Run?

It is owned by the Town or Township Highway Agency.