US Bridges

Twining Road over Sandy Run

Fair

Montgomery County, Pennsylvania · 700 S SR152 Adc 3258-C10 · Structure no. 000000000028049

Built
1947
78 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
47 ft
1 main span
Daily traffic
2,000
2018 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Twining Road over Sandy Run is a steel stringer/multi-beam or girder carrying Twining Road over Sandy Run in Montgomery County, Pennsylvania. It was built in 1947, so it is 78 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 2,000 vehicles a day, roughly 1% of them trucks, projected to reach 2,500 by 2038. The structure is 47 ft (14.3 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesTwining Road
CrossesSandy Run
Location700 S SR152 Adc 3258-C10
RouteCity Street 0
CountyMontgomery County
StatePennsylvania
Coordinates40.12695, -75.16867
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length47 ft (14.3 m)
Longest span43 ft (13.1 m)
Deck width31 ft (9.5 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2018)
Projected traffic2,500 by 2038
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 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 Twining Road over Sandy Run built?

It was built in 1947, making it 78 years old in 2025.

What condition is Twining Road 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 January 2023.

How much traffic does Twining Road over Sandy Run carry?

About 2,000 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Twining Road over Sandy Run?

The structure is 47 ft (14.3 m) long with a longest span of 43 ft (13.1 m) and a deck 31 ft wide.

Who owns Twining Road over Sandy Run?

It is owned by the Town or Township Highway Agency.