US Bridges

Martins Mill Road over CSX SEPTA (nwtn Br)

Good

Philadelphia County, Pennsylvania · At Longshore Avenue 18G06 · Structure no. 000000000039236

Built
1999
26 years old
Condition
Good
inspected June 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
113 ft
2 main spans
Daily traffic
6,800
1981 count
Owner
City
City or Municipal Highway Agency

About this bridge

Martins Mill Road over CSX SEPTA (nwtn Br) is a prestressed concrete box beam or girders - multiple carrying Martins Mill Road over CSX SEPTA (nwtn Br) in Philadelphia County, Pennsylvania. It was built in 1999, so it is 26 years old, younger 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 6,800 vehicles a day, projected to reach 9,240 by 2001. The structure is 113 ft (34.4 m) long and 46 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesMartins Mill Road
CrossesCSX SEPTA (nwtn Br)
LocationAt Longshore Avenue 18G06
RouteCity Street 0
CountyPhiladelphia County
StatePennsylvania
Coordinates40.05721, -75.09348
Functional classUrban Local

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 inspectionJune 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating110.1 US tons
Inventory rating56 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length113 ft (34.4 m)
Longest span52 ft (15.8 m)
Deck width46 ft (14.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck19 ft (5.7 m)

Traffic and service

Average daily traffic6,800 (1981)
Projected traffic9,240 by 2001
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$739,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Martins Mill Road over CSX SEPTA (nwtn Br) built?

It was built in 1999, making it 26 years old in 2025.

What condition is Martins Mill Road over CSX SEPTA (nwtn Br) 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 June 2022.

How much traffic does Martins Mill Road over CSX SEPTA (nwtn Br) carry?

About 6,800 vehicles per day (1981 count).

How long is Martins Mill Road over CSX SEPTA (nwtn Br)?

The structure is 113 ft (34.4 m) long with a longest span of 52 ft (15.8 m) and a deck 46 ft wide.

Who owns Martins Mill Road over CSX SEPTA (nwtn Br)?

It is owned by the City or Municipal Highway Agency.