US Bridges

Nursery Road over Unami Creek

PoorClosed to traffic

Bucks County, Pennsylvania · 3 MI SE SR663 Adc 2806-D8 · Structure no. 000000000007496

Built
1891
134 years old, rebuilt 1934
Condition
Poor
inspected July 2024
Type
Truss - Thru
Steel
Length
119 ft
1 main span
Daily traffic
100
1998 count
Owner
County
County Highway Agency

About this bridge

Nursery Road over Unami Creek is a steel truss - thru carrying Nursery Road over Unami Creek in Bucks County, Pennsylvania. It was built in 1891 and reconstructed in 1934, so it is 134 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 100 vehicles a day, projected to reach 115 by 2015. The structure is 119 ft (36.3 m) long and 16 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNursery Road
CrossesUnami Creek
Location3 MI SE SR663 Adc 2806-D8
RouteCity Street 0
Coordinates40.39299, -75.41659
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry0: Immediate repair necessary to put back in service
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckOpen grating
Main spans1
Design loadUnknown
Structure length119 ft (36.3 m)
Longest span116 ft (35.4 m)
Deck width16 ft (4.8 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deck8 ft (2.6 m)

Traffic and service

Average daily traffic100 (1998)
Projected traffic115 by 2015
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Nursery Road over Unami Creek built?

It was built in 1891, making it 134 years old in 2025. It was reconstructed in 1934.

What condition is Nursery Road over Unami Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does Nursery Road over Unami Creek carry?

About 100 vehicles per day (1998 count).

How long is Nursery Road over Unami Creek?

The structure is 119 ft (36.3 m) long with a longest span of 116 ft (35.4 m) and a deck 16 ft wide.

Who owns Nursery Road over Unami Creek?

It is owned by the County Highway Agency.