US Bridges

East Johnson Hwy. over Br Saw Mill RUN/3255-J10

Good

Montgomery County, Pennsylvania · Near Norristown 29C06 · Structure no. 000000000027723

Built
1924
101 years old, rebuilt 2019
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
6,026
2024 count
Owner
State
State Highway Agency

About this bridge

East Johnson Hwy. over Br Saw Mill RUN/3255-J10 is a prestressed concrete box beam or girders - multiple carrying East Johnson Hwy. over Br Saw Mill RUN/3255-J10 in Montgomery County, Pennsylvania. It was built in 1924 and reconstructed in 2019, so it is 101 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.

It carries about 6,026 vehicles a day, roughly 4% of them trucks, projected to reach 14,541 by 2032. The structure is 28 ft (8.5 m) long and 55 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesEast Johnson Hwy.
CrossesBr Saw Mill RUN/3255-J10
LocationNear Norristown 29C06
RouteState Highway 0
CountyMontgomery County
StatePennsylvania
Coordinates40.12632, -75.31925
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating38.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length28 ft (8.5 m)
Longest span27 ft (8.2 m)
Deck width55 ft (16.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,026 (2024)
Projected traffic14,541 by 2032
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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 East Johnson Hwy. over Br Saw Mill RUN/3255-J10 built?

It was built in 1924, making it 101 years old in 2025. It was reconstructed in 2019.

What condition is East Johnson Hwy. over Br Saw Mill RUN/3255-J10 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 September 2023.

How much traffic does East Johnson Hwy. over Br Saw Mill RUN/3255-J10 carry?

About 6,026 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is East Johnson Hwy. over Br Saw Mill RUN/3255-J10?

The structure is 28 ft (8.5 m) long with a longest span of 27 ft (8.2 m) and a deck 55 ft wide.

Who owns East Johnson Hwy. over Br Saw Mill RUN/3255-J10?

It is owned by the State Highway Agency.