US Bridges

Ludwig Road over Swamp Creek

Fair

Montgomery County, Pennsylvania · 0.4 MI N SR73 Adc 2915-J9 · Structure no. 000000000027982

Built
1996
29 years old
Condition
Fair
inspected June 2024
Type
Arch - Deck
Aluminum, Wrought Iron, or Cast Iron
Length
81 ft
3 main spans
Daily traffic
497
2019 count
Owner
County
County Highway Agency

About this bridge

Ludwig Road over Swamp Creek is a aluminum, wrought iron, or cast iron arch - deck carrying Ludwig Road over Swamp Creek in Montgomery County, Pennsylvania. It was built in 1996, so it is 29 years old, younger 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 497 vehicles a day, projected to reach 560 by 2018. The structure is 81 ft (24.7 m) long and 40 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLudwig Road
CrossesSwamp Creek
Location0.4 MI N SR73 Adc 2915-J9
RouteCity Street 0
CountyMontgomery County
StatePennsylvania
Coordinates40.32197, -75.57359
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating43 US tons

Structure

Structure typeArch - Deck
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans3
Design loadUnknown
Structure length81 ft (24.7 m)
Longest span25 ft (7.6 m)
Deck width40 ft (12.3 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic497 (2019)
Projected traffic560 by 2018
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$691,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Ludwig Road over Swamp Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is Ludwig Road over Swamp Creek 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 June 2024.

How much traffic does Ludwig Road over Swamp Creek carry?

About 497 vehicles per day (2019 count).

How long is Ludwig Road over Swamp Creek?

The structure is 81 ft (24.7 m) long with a longest span of 25 ft (7.6 m) and a deck 40 ft wide.

Who owns Ludwig Road over Swamp Creek?

It is owned by the County Highway Agency.