US Bridges

Doylestwn Bypas NB over Saw Mill ROAD(T401)

Fair

Bucks County, Pennsylvania · .4MI.S.LR 156 23A07 · Structure no. 000000000007070

Built
1973
52 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
178 ft
3 main spans
Daily traffic
6,995
2024 count
Owner
State
State Highway Agency

About this bridge

Doylestwn Bypas NB over Saw Mill ROAD(T401) is a prestressed concrete stringer/multi-beam or girder carrying Doylestwn Bypas NB over Saw Mill ROAD(T401) in Bucks County, Pennsylvania. It was built in 1973, so it is 52 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 5 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 6,995 vehicles a day, roughly 6% of them trucks, projected to reach 8,294 by 2032. The structure is 178 ft (54.3 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesDoylestwn Bypas NB
CrossesSaw Mill ROAD(T401)
Location.4MI.S.LR 156 23A07
RouteState Highway 611
CountyBucks County
StatePennsylvania
Coordinates40.33788, -75.13404
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length178 ft (54.3 m)
Longest span86 ft (26.2 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,995 (2024)
Projected traffic8,294 by 2032
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Doylestwn Bypas NB over Saw Mill ROAD(T401) built?

It was built in 1973, making it 52 years old in 2025.

What condition is Doylestwn Bypas NB over Saw Mill ROAD(T401) 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 March 2024.

How much traffic does Doylestwn Bypas NB over Saw Mill ROAD(T401) carry?

About 6,995 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Doylestwn Bypas NB over Saw Mill ROAD(T401)?

The structure is 178 ft (54.3 m) long with a longest span of 86 ft (26.2 m) and a deck 44 ft wide.

Who owns Doylestwn Bypas NB over Saw Mill ROAD(T401)?

It is owned by the State Highway Agency.