US Bridges

Trenton Road over Mill Creek

Fair

Bucks County, Pennsylvania · .2MI.EAST Pa 413 42F01 · Structure no. 000000000007179

Built
1957
68 years old, rebuilt 2010
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
49 ft
1 main span
Daily traffic
8,758
2023 count
Owner
State
State Highway Agency

About this bridge

Trenton Road over Mill Creek is a prestressed concrete box beam or girders - multiple carrying Trenton Road over Mill Creek in Bucks County, Pennsylvania. It was built in 1957 and reconstructed in 2010, so it is 68 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 8,758 vehicles a day, roughly 3% of them trucks, projected to reach 16,408 by 2032. The structure is 49 ft (14.9 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesTrenton Road
CrossesMill Creek
Location.2MI.EAST Pa 413 42F01
RouteState Highway 0
CountyBucks County
StatePennsylvania
Coordinates40.15777, -74.89138
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.3 US tons
Inventory rating43.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length49 ft (14.9 m)
Longest span46 ft (14 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,758 (2023)
Projected traffic16,408 by 2032
Trucks3%
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

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$92,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Trenton Road over Mill Creek built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2010.

What condition is Trenton Road over Mill 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 October 2024.

How much traffic does Trenton Road over Mill Creek carry?

About 8,758 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Trenton Road over Mill Creek?

The structure is 49 ft (14.9 m) long with a longest span of 46 ft (14 m) and a deck 43 ft wide.

Who owns Trenton Road over Mill Creek?

It is owned by the State Highway Agency.