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Mountain Quarries Bridge

  • Also Known As: Black Hole of Calcutta Falls Trail
  • Also Known As: Mountain Quarry Cement Bridge also American River Quarry Bridge
  • Also Known As: Pacific Portland Cement Company Railroad Bridge
  • Also Known As: Western States Pioneer Express Recreation Trail

  • Address: El Dorado St (CA 49)
  • Vicinity: North Fork American River, just downstream from confluence North Fork and Middle Fork, 1 mi E of Auburn
  • Travel Genus: Sight
  • Activity Category: On Foot
  • Sight Category: Structure
  • On Foot Type: Hike

Short hike to walk over Mountain Quarries Railroad Bridge, continue on to see Black Hole Of Calcutta Falls. The falls are 1 mile (1.6 km) from the trailhead at gate 150. - AsNotedIn



Y/M/D Person Association Description Composition Food Event
Y/M/D Person Association Description Composition Food Event
1911/00/00 John B Leonard Architect Built by 300 men at a cost of $300000, completing the bridge in two years, 1910-1911

Geography »

Physiographic Data
Length: 800 m

Data »

Particulars for Mountain Quarries Bridge:
Criteria Architecture-Engineering
Structure type Bridge
Other Description Concrete arch bridge
Area of Significance Engineering
Owner Federal
Area of Significance Railroad
Level of Significance State
Sight Category Structure

US National Registry of Historic Places Data »

Accurate at time of registration: 11th February 2004

Registry Name: Mountain Quarries Bridge
Registry Address: North Fork of the American River
Registry Number: 04000014
Resource Type: Structure
Owner: Federal
Architect: Leonard, John B.;
Architectural Style: Other
Attribute: Concrete arch bridge
Contributing Structures: 1
Other Certification: Date received-pending nomination
Certification: Listed in the National Register
Level of Significance: State
Area of Significance: Engineering
Applicable Criteria: Architecture-Engineering
Significant Year: 1912
Historic Function: Transportation
Historic Sub-Function: Rail-related
Current Function: Transportation
Current Sub-Function: Pedestrian related

Activities »

On Foot Type Hike
Activity Category On Foot

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