US Bridges

SR 4005 Seamens RD over Norfolk Southern RR

Good

Lackawanna County, Pennsylvania · Benton Twp 1 M S SR 4004 · Structure no. 000000000020793

Built
1915
110 years old, rebuilt 2023
Condition
Good
inspected August 2024
Type
Arch - Deck
Concrete
Length
129 ft
1 main span
Daily traffic
319
2024 count
Owner
Railroad
Railroad

About this bridge

SR 4005 Seamens RD over Norfolk Southern RR is a concrete arch - deck carrying SR 4005 Seamens RD over Norfolk Southern RR in Lackawanna County, Pennsylvania. It was built in 1915 and reconstructed in 2023, so it is 110 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 319 vehicles a day, roughly 5% of them trucks, projected to reach 276 by 2032. The structure is 129 ft (39.3 m) long and 28 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesSR 4005 Seamens RD
CrossesNorfolk Southern RR
LocationBenton Twp 1 M S SR 4004
RouteState Highway 0
CountyLackawanna County
StatePennsylvania
Coordinates41.57623, -75.76024
Functional classRural Minor 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating39.2 US tons
Inventory rating30.3 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+4 approach)
Design loadHL 93
Structure length129 ft (39.3 m)
Longest span79 ft (24.1 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic319 (2024)
Projected traffic276 by 2032
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerRailroad
Maintained byRailroad
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$326,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 4005 Seamens RD over Norfolk Southern RR built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 2023.

What condition is SR 4005 Seamens RD over Norfolk Southern RR 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 4005 Seamens RD over Norfolk Southern RR carry?

About 319 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is SR 4005 Seamens RD over Norfolk Southern RR?

The structure is 129 ft (39.3 m) long with a longest span of 79 ft (24.1 m) and a deck 28 ft wide.

Who owns SR 4005 Seamens RD over Norfolk Southern RR?

It is owned by the Railroad.