US Bridges

Main Street over NS MP 34.71 / 3139J07

Fair

Montgomery County, Pennsylvania · Linfield;limerick 3139J07 · Structure no. 000000000027819

Built
1968
57 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
117 ft
1 main span
Daily traffic
8,167
2024 count
Owner
Railroad
Railroad

About this bridge

Main Street over NS MP 34.71 / 3139J07 is a steel stringer/multi-beam or girder carrying Main Street over NS MP 34.71 / 3139J07 in Montgomery County, Pennsylvania. It was built in 1968, so it is 57 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 8,167 vehicles a day, roughly 5% of them trucks, projected to reach 8,804 by 2032. The structure is 117 ft (35.7 m) long and 44 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesMain Street
CrossesNS MP 34.71 / 3139J07
LocationLinfield;limerick 3139J07
RouteState Highway 0
CountyMontgomery County
StatePennsylvania
Coordinates40.2075, -75.572
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating92 US tons
Inventory rating55 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length117 ft (35.7 m)
Longest span107 ft (32.6 m)
Deck width44 ft (13.4 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,167 (2024)
Projected traffic8,804 by 2032
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerRailroad
Maintained byRailroad
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$513,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Main Street over NS MP 34.71 / 3139J07 built?

It was built in 1968, making it 57 years old in 2025.

What condition is Main Street over NS MP 34.71 / 3139J07 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 July 2023.

How much traffic does Main Street over NS MP 34.71 / 3139J07 carry?

About 8,167 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Main Street over NS MP 34.71 / 3139J07?

The structure is 117 ft (35.7 m) long with a longest span of 107 ft (32.6 m) and a deck 44 ft wide.

Who owns Main Street over NS MP 34.71 / 3139J07?

It is owned by the Railroad.