I learned quite a bit during my History Preservation classes. Most notably, concerning research. The instructor, Eli Pousson, showed us many resources where we could find information and photographs. So I went to one site at a local university (Hughes Collection) and as I normally do, I typed in two keywords in the search box. First, ‘Montebello’ followed by ‘Loch Raven’.  There were about 30 photographs listed, most of which were mislabeled or misleading.

The below photo from the Public Works collection, which is the same as the one in the Hughes Collection, marked as #457 is described as –

Title [Metal bridge at Loch Raven, Baltimore]
Accession Number P75-54-0586g
Photographer Hughes Company
Date Created 1914-08-07
Caption From Sleeve: Greiner and Whitman Bridges. Loch Raven. (15370) -2 negs.
Loch Raven. Aug 7 14
Description Bridge attributed to John Edwin Greiner and Ezra B. Whitman.
Title Note Title supplied by cataloger.
Notes Positive digital file from original glass negative
Measurements 8 x 10 in.
DCMI Type StillImage
Work Type (AAT) photographs
Process black-and-white photographs, gelatin dry plate negatives
Genre documentary photography
Location United States — Maryland — Baltimore
Subject Names (Local) J.E. Greiner Company
Loch Raven Reservoir (Md.)
Subject Names (LCNAF) Greiner, J. E. (John Edwin), b. 1859
Subject (TGM) Truss bridges
Condition Border of black paper. Specks of emulsion chipped all over image. Glass side has fingertip smudges.
Collection Hughes Company Glass Negatives
Credit Line The Photography Collections, University of Maryland, Baltimore County
Rights This item may be protected under Title 17 of the U.S. Copyright Law. It is made available by UMBC for non-commercial research and education. For permission to publish or reproduce, please contact Special Collections at speccoll(at)umbc.edu.
Repository University of Maryland, Baltimore County (UMBC)

A couple things that jump out at me are these facts – Greiner and Whitman Bridges: These gentlemen (probably the ones in the photo) were the consulting engineers on the job. The actual builder of the bridge was the Roanoke Bridge Co. It also notes that there are two negatives? I have what I thought was the original negative. Did they photograph a print and make 2 negatives? Also, my plate is cracked and noted as such.

The photo below shows a side view, taken on the same date. The bridge was known as Bridge #1, also called the Yellott Bridge. It was approximately in the same place that the present bridge is – Loch Raven Drive.