US Bridges

Lumber Street over Macoby Creek

Poor

Montgomery County, Pennsylvania · Green Lane 2917E6 · Structure no. 000000000027568

Built
1931
94 years old, rebuilt 1969
Condition
Poor
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
90 ft
2 main spans
Daily traffic
731
2024 count
Owner
State
State Highway Agency

About this bridge

Lumber Street over Macoby Creek is a steel stringer/multi-beam or girder carrying Lumber Street over Macoby Creek in Montgomery County, Pennsylvania. It was built in 1931 and reconstructed in 1969, so it is 94 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.

It carries about 731 vehicles a day, roughly 6% of them trucks, projected to reach 1,183 by 2032. The structure is 90 ft (27.4 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLumber Street
CrossesMacoby Creek
LocationGreen Lane 2917E6
RouteState Highway 0
Coordinates40.34219, -75.47075
Functional classUrban 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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53 US tons
Inventory rating32 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length90 ft (27.4 m)
Longest span43 ft (13.1 m)
Deck width32 ft (9.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic731 (2024)
Projected traffic1,183 by 2032
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Lumber Street over Macoby Creek built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1969.

What condition is Lumber Street over Macoby 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 2023.

How much traffic does Lumber Street over Macoby Creek carry?

About 731 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Lumber Street over Macoby Creek?

The structure is 90 ft (27.4 m) long with a longest span of 43 ft (13.1 m) and a deck 32 ft wide.

Who owns Lumber Street over Macoby Creek?

It is owned by the State Highway Agency.