US Bridges

SR 309 Bypass over Tennis Avenue

Good

Montgomery County, Pennsylvania · NE of Ambler 3257G03 · Structure no. 000000000027391

Built
1958
67 years old, rebuilt 2010
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
130 ft
3 main spans
Daily traffic
—
Owner
State
State Highway Agency

About this bridge

SR 309 Bypass over Tennis Avenue is a steel continuous stringer/multi-beam or girder carrying SR 309 Bypass over Tennis Avenue in Montgomery County, Pennsylvania. It was built in 1958 and reconstructed in 2010, so it is 67 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

No traffic count is recorded. The structure is 130 ft (39.6 m) long and 94 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSR 309 Bypass
CrossesTennis Avenue
LocationNE of Ambler 3257G03
RouteState Highway 309
CountyMontgomery County
StatePennsylvania
Coordinates40.17287, -75.2111
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating106 US tons
Inventory rating64 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length130 ft (39.6 m)
Longest span57 ft (17.4 m)
Deck width94 ft (28.5 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic65,331 by 2032
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 309 Bypass over Tennis Avenue built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2010.

What condition is SR 309 Bypass over Tennis Avenue in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does SR 309 Bypass over Tennis Avenue carry?

No traffic count is recorded for this structure.

How long is SR 309 Bypass over Tennis Avenue?

The structure is 130 ft (39.6 m) long with a longest span of 57 ft (17.4 m) and a deck 94 ft wide.

Who owns SR 309 Bypass over Tennis Avenue?

It is owned by the State Highway Agency.