Showing 501 - 521 of 521 Records

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[Drawings for features on the North Branch Extension Canal], n.d. Includes plans for dams, lock houses, culverts, guard-gate, locks, bridges, waste-weirs. (63 sections)
[Permanent Bridge at Market Street, n.d.] Drawn by George Merrick, Engineer and approved by Samuel Hains, City Surveyor. (3 sections)
"General Map of the Route from Conneaut Lake to Lake Erie as Examined and Reported Upon, By D. B. Douglass, ...Drawn under the direction of Profr. Douglass by T. B. Brown, Assistant Engineer," n.d. (3 sections)
Map Book Number 31, 1826
Map Book 7 Index
"Map and Profile of the Gettysburg Railroad as Surveyed by Order of the Legislature of Pennsylvania, 1839." H. R. Campbell, Engineer. P. S. Duval, Lith. Philadelphia. (2 sections)
"Gettysburg Extension of the Pennsylvania Rail Road, No. 1," n.d. (8 sections)
Map Book Number 13, 1826-1866
"Chesapeake and Ohio Canal-Second Residency." General Abstract of the work executed u to 31st Decr. 1830, and yet remaining to be executed. (4 sections)
[A pencil drawn field map (unidentified), probably belonging to Middle Route drawings for the proposed Harrisburg and Pittburg Rail Road, 1838-41]. (2 sections)
[Office work map, possibly of construction engineer Sylvester Welch, for Sections Nos. 20-25 of the Allegheny Portage Railroad, generally eastwards along the Little Conemaugh River to Inclined Plane No. 2., c. 1831]. (2 sections)
[Drawings for Arches of brick, timber, etc.], n.d. (2 sections)
"Map of the Western Reservoir For Pennsylvania Canal, Cambria County, Pa., 1853." R. S. Alexander. (4 sections)
"Map of the Union Improvement and other Coal Estates in the N. E. Section of the Middle Coal Field," n.d. P. S. Duval & Co's Lith. Phiadelphia. (4 sections)
"Outlet Lock," n.d. Shows: Elevation, Ground Plan. (6 sections)
"Proposed Aqueduct at Duncans Island," n.d. Shows: Elevation, Ground Plan. (3 sections)
[Juniata Aqueduct at Jack's Narrows], n.d. (4 sections)
"Middle Route No 3," n.d. [Harrisburg & Pittsburg Rail Road. Near Newport to Millerstown]. Shows: Mill, Penna. Canal, Rope Ferry, Dam. (6 sections)
"Middle Route No 4," n.d. [Harrisburg & Pittsburg Rail Road To west of Mifflin]. Shows: Penna. Canal, Perrysville. (6 sections)
Map Book Number 07, 1827-1855
Map Book Number 02, 1836-1838
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520 Records of the Board of Canal Commissioners 519 Map Books, 1810-1881, undated 78 Map Book Number 50, 1826-1859 42 Map Book Number 16, 1831-1855 33 Map Book Number 01, 1829-1844 31 Map Book Number 29, 1826-1833 30 Map Book Number 43, 1826-1851 29 Map Book Number 18, 1836-1846 23 Map Book Number 08, n.d. 21 Map Book Number 07, 1827-1855 20 Map Book Number 04, 1829-1866 18 Map Book Number 03, 1830-1841 17 Map Book Number 11, 1839-1841 15 Map Book Number 21, 1826, 1839-1840 15 Map Book Number 23, 1825-1871 11 Map Book Number 05, 1828 9 Map Book Number 19, 1824-1840 7 Map Book Number 13, 1826-1866 6 Map Book Number 12, 1826-1827 5 Map Book Number 25, 1830-1831 5 Map Book Number 52, 1841 4 Map Book Number 20, 1831-1851 3 Map Book Number 02, 1836-1838 3 Map Book Number 14, 1881, n.d. 3 Map Book Number 15, n.d. 3 Map Book Number 37, 1810-1855 3 Map Book Number 41, 1827 2 Map Book Number 06, 1828 2 Map Book Number 09, 1826 2 Map Book Number 10, n.d. 2 Map Book Number 17, n.d. 2 Map Book Number 22, 1827 2 Map Book Number 24, n.d. 2 Map Book Number 26, 1827-1835 2 Map Book Number 27, n.d. 2 Map Book Number 28, n.d. 2 Map Book Number 32, 1840-1878 1 Map Book Number 30, 1836 1 Map Book Number 31, 1826 1 Map Book Number 34, 1828 1 Map Book Number 35, 1828 1 Map Book Number 36, 1836-1838 1 Map Book Number 39, 1839, 1846, 1855 1 Map Book Number 40, 1828 1 Map Book Number 42, 1828-1857 1 Map Book Number 44, n.d. 1 Map Book Number 45, 1830 1 Map Book Number 46 (Title page only) 1 Map Book Number 47, n.d. 1 Map Book Number 48, 1827-1828 1 Map Book Number 49, 1841 1 Map Book Number 51, 1841-1842

450 Canals 450 Engineers 450 Maps 1 "Article of Agreement" [between Commonwealth and Wm. Bindle, Supt. of N.B. Division to construct Dam No.1, May 26, 1852]. 1 "Irons for Weigh-Lock," n.d. by Franks. (2 sections) 1 "Lock Plan 4," n.d. (3 sections) 1 "Map of Conneaut Lake and its Environs shewing the relative position of the Conneaut and Shenango summits from surveys made in November 1828. Drawn under the direction of J. Ferguson, Engineer of the French Creek Feeder by Wm. Pollock." (3 sections) 1 "Map of the Western Reservoir For Pennsylvania Canal, Cambria County, Pa., 1853." R. S. Alexander. (4 sections) 1 "Plan and Elevation of the Bridge at Karthus." Charles L. Schlatter, Principal Engineer, Harrisburg. June 5, 1840. (6 sections) 1 "Plan and Section of a Canal from West Br. Div. Penna Canal to West Br. of Susquehanna opposite Lewisburg, Surveyed 1830, by F.W. Rawle, Esq." Lewisburg Side Cut. (1 section) 1 "Plan of Cast Iron Pipes for Eastern Reservoir. Furnished to Contractors, April 24, 1840. (1 section) 1 "Profile of the Harrisburg & Pittsburg Rail Road, Northern Route, No. 2." [Elder's Run to A. Smith's Ridge], 1839. Drawn by Haden Smith. (4 sections) 1 "Profile of the Harrisburg and Pttsburg Rail Road. Southern Route, No. 2." [From mouth of Brush Creek to Greensburg]. Surveyed under the Direction of Charles L. Schlatter. By John A. Roebling, 1839. Drawn by W. Gill. (5 sections) 1 "Profiles of the Conneaut & Shena[ngo] Summits west from Pitneys on the lines of the Plan SFC. LFC. & WSL. Sept. 20, 1829, J. Ferguson, Engr." 1 "Sketch of Piling Iron [for] Western Reservoir," n.d. Shows: Front Elevation. (1 section) 1 Map Book 5 Index 1 [Juniata Aqueduct at Jack's Narrows], n.d. (4 sections) 1 [Lycoming Line from Jersey Shore to Great Island], n.d. "Profile of the present Location. Profile of the new Location. (1 section) 1 [Lycoming Line from Lycoming Creek to Jersey Shore], n.d. "Profile of the present Location. Profile of Line passing Lycoming Creek by Aqueduct. Profile of Line by Newberry, passing Lycoming Creek by a Dam," n.d. (1 section) 1 [Lycoming Line from Muncy Dam to Lycoming Creek), n.d. Profiles. (1section) 1 [Lycoming Line, from Muncy Dam to Dam No.1], n.d. (1 section) 1 [Map of Borough of Williamsport], n .d. (1 section)