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Maclay's Mill East Bridge

Maclay's Mill East Bridge

Primary Photographer(s): Nathan Holth and Rick McOmber

Bridge Documented: July 15, 2011

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Facility Carried / Feature Intersected
Maclays Mill Road (PA-4018) Over Conodoguinet Creek Mill Race
Location
Rural: Franklin County, Pennsylvania: United States
Structure Type
Stone Segmental Deck Arch, Fixed
Construction Date and Builder / Engineer
1827 By Builder/Contractor: Silas Harry of Chambersburg, Pennsylvania
Rehabilitation Date
Not Available or Not Applicable
Main Span Length
20.0 Feet (6.1 Meters)
Structure Length
45.0 Feet (13.7 Meters)
Roadway Width
16.7 Feet (5.09 Meters)
Spans
2 Main Span(s)
Inventory Number
28401800620000

Historic Significance Rating (HSR)
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Bridge Documentation

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

View Historic American Engineering Record (HAER) Documentation For This Bridge

HAER Drawings, PDF - HAER Data Pages, PDF

This bridge is the smaller of two ancient stone arch bridges on this section of road. The bridges are significant for their very old construction dates, and for their good historic integrity. Be sure to review the Historic American Engineering Record documentation for a detailed discussion.

The bridges were built by Silas Harry. A number of the oldest stone arch bridges in Pennsylvania and Maryland are attributed to Silas Harry indicating that he was a prolific builder, and also built structures designed to stand the test of time.

Information and Findings From Pennsylvania's Historic Bridge Inventory

Discussion of Bridge

The 2-span 45'-long stone arch bridge with stone parapets is listed in the National Register. It is one of a pair of bridges at this crossing (28 4018 0070 0000) known as McClays Twin Bridges. A section of the northwest wingwall has been repointed and the stone coping replaced by concrete, otherwise there has been no change in the bridge's status since the previous survey. The bridge has dressed voussoirs, bullnose pier, and fieldstone spandrel walls and wingwalls with parapets. Alterations prior to the previous survey include grapevine repointing and pargetted intrados.

Discussion of Surrounding Area

The bridge carries a 2 lane road over a stream in a rural area of active farms.

Bridge Considered Historic By Survey: Yes

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Photo Galleries and Videos: Maclay's Mill East Bridge

 

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Maps and Links: Maclay's Mill East Bridge

Coordinates (Latitude, Longitude):

Search For Additional Bridge Listings:

Bridgehunter.com: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

Bridgehunter.com: View listed bridges within 10 miles (16 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

HistoricBridges.org Bridge Browser: View listed bridges within 10 miles (16 kilometers) of this bridge.

2021 National Bridge Inventory: View listed bridges within 0.5 miles (0.8 kilometers) of this bridge.

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