US Bridges

Hollow Road over Trib of Zacharias Creek

Fair

Montgomery County, Pennsylvania · Doe Brook LANE/FAWN3143C8 · Structure no. 000000000054284

Built
1996
29 years old
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
27 ft
1 main span
Daily traffic
500
2017 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Hollow Road over Trib of Zacharias Creek is a prestressed concrete box beam or girders - multiple carrying Hollow Road over Trib of Zacharias 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 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 500 vehicles a day, roughly 2% of them trucks, projected to reach 600 by 2027. The structure is 27 ft (8.2 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHollow Road
CrossesTrib of Zacharias Creek
LocationDoe Brook LANE/FAWN3143C8
Coordinates40.20084, -75.36006
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating54 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length27 ft (8.2 m)
Longest span26 ft (7.9 m)
Deck width32 ft (9.8 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2017)
Projected traffic600 by 2027
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hollow Road over Trib of Zacharias Creek built?

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

What condition is Hollow Road over Trib of Zacharias 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 March 2023.

How much traffic does Hollow Road over Trib of Zacharias Creek carry?

About 500 vehicles per day (2017 count), of which roughly 2% are trucks.

How long is Hollow Road over Trib of Zacharias Creek?

The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.9 m) and a deck 32 ft wide.

Who owns Hollow Road over Trib of Zacharias Creek?

It is owned by the Town or Township Highway Agency.