US Bridges

Spring Mount Road over Swamp Creek

Fair

Montgomery County, Pennsylvania · 500 Ft NE of SR 0029 · Structure no. 000000000027981

Built
1991
34 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
138 ft
3 main spans
Daily traffic
5,350
2019 count
Owner
County
County Highway Agency

About this bridge

Spring Mount Road over Swamp Creek is a prestressed concrete box beam or girders - multiple carrying Spring Mount Road over Swamp Creek in Montgomery County, Pennsylvania. It was built in 1991, so it is 34 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 5,350 vehicles a day, projected to reach 4,952 by 2018. The structure is 138 ft (42.1 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSpring Mount Road
CrossesSwamp Creek
Location500 Ft NE of SR 0029
RouteCity Street 0
CountyMontgomery County
StatePennsylvania
Coordinates40.2693, -75.46784
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating79 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length138 ft (42.1 m)
Longest span44 ft (13.4 m)
Deck width32 ft (9.8 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,350 (2019)
Projected traffic4,952 by 2018
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Spring Mount Road over Swamp Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is Spring Mount Road over Swamp 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 August 2024.

How much traffic does Spring Mount Road over Swamp Creek carry?

About 5,350 vehicles per day (2019 count).

How long is Spring Mount Road over Swamp Creek?

The structure is 138 ft (42.1 m) long with a longest span of 44 ft (13.4 m) and a deck 32 ft wide.

Who owns Spring Mount Road over Swamp Creek?

It is owned by the County Highway Agency.