US Bridges

Briarwood Road over Darby Creek

PoorPosted for load

Delaware County, Pennsylvania · 0.9 M W PA-320 3476-K10 · Structure no. 000000000015426

Built
1970
55 years old
Condition
Poor
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
72 ft
2 main spans
Daily traffic
750
2015 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Briarwood Road over Darby Creek is a prestressed concrete box beam or girders - multiple carrying Briarwood Road over Darby Creek in Delaware County, Pennsylvania. It was built in 1970, so it is 55 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 4 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: posted for load restriction.

It carries about 750 vehicles a day, roughly 2% of them trucks, projected to reach 900 by 2035. The structure is 72 ft (21.9 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBriarwood Road
CrossesDarby Creek
Location0.9 M W PA-320 3476-K10
RouteCity Street 0
Coordinates40.00488, -75.3771
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37 US tons
Inventory rating14 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length72 ft (21.9 m)
Longest span34 ft (10.4 m)
Deck width45 ft (13.6 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2015)
Projected traffic900 by 2035
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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$545,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Briarwood Road over Darby Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Briarwood Road over Darby 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 Briarwood Road over Darby Creek carry?

About 750 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is Briarwood Road over Darby Creek?

The structure is 72 ft (21.9 m) long with a longest span of 34 ft (10.4 m) and a deck 45 ft wide.

Who owns Briarwood Road over Darby Creek?

It is owned by the Town or Township Highway Agency.