Castle Rock Lower Bridge
Oblique view from northeast
Water flows from right to left in this photo.
Photo taken by Roger Deschner in May 2015
License: Creative Commons Attribution-Share-Alike (CC BY-SA)
BH Photo #325493
One of two bridges on a former alignment of Boulder Canyon Highway (CO 119). When the highway was routed on a new alignment in 1953, this section of the old road, with its two bridges, was left in place, with picnic tables installed. The area around this bridge is popular today for fishing.
NBI lists construction date as 1930, noting that dates ending in 0 are often estimates. The style of the art deco railing does suggest the 1930s.
The two bridges are very different. This one is a concrete slab.
- Concrete slab bridge over Middle Boulder Creek on Old Boulder Canyon Drive (Co Rd 54A)
- Boulder County, Colorado
- Open to traffic; posted for load
- Built ca. 1930; bypassed 1953, but left in place to serve recreational area
- Concrete slab
Length of largest span: 20.3 ft.
Total length: 23.6 ft.
Deck width: 20.3 ft.
Eligible for the National Register of Historic Places
- Approximate latitude, longitude
- +39.98052, -105.45461 (decimal degrees)
39°58'50" N, 105°27'17" W (degrees°minutes'seconds")
- Approximate UTM coordinates
- 13/461183/4425693 (zone/easting/northing)
- Quadrangle map:
- Inventory number
- BH 67777 (Bridgehunter.com ID)
- Inspection (as of 01/2015)
- Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Serious (3 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 39.0 (out of 100)
- Average daily traffic (as of 2011)
- May 25, 2015: Added by Roger Deschner
- Roger Deschner - rogerdeschner [at] gmail [dot] com