Caspar Wever

Caspar Willis Wever (1786 – February 7, 1861), also spelled Casper W. Wever, was an American construction superintendent and surveyor associated with early United States internal improvements. He supervised National Road construction west of the Ohio River between Bridgeport and Zanesville (1825–1829) and later oversaw early works on the Baltimore and Ohio Railroad (B&O), including the Carrollton Viaduct and early main-line structures.^[1][2] He helped promote the industrial village of Weverton, Maryland, and served one term in the Maryland House of Delegates in 1821.^[3]

Wever was born in 1786 in Lancaster County, Pennsylvania, to Adam Wever (1752–1845) and Catherine Dietz; by the 1810s he was living in Washington County, Maryland. He married Jane Catharine Dunlop (1792–1859) in 1812, and they had nine children.^[4] He represented Washington County in the Maryland House of Delegates for one one-year term in 1821.^[3]

Wever was appointed a justice of the peace in Washington County in 1821.^[5] He attended internal-improvement meetings in 1823 and 1826 advocating a Potomac canal.^[6]

In the 1810s and early 1820s, construction of the Cumberland (National) Road proceeded under a commissioner–superintendent model within the Treasury Department; practice drew on state-chartered turnpike precedents before later transitioning to a War Department survey-and-engineer system.^{[7][8][9]: 102} The General Survey Act of April 30, 1824, shifted national road-and-canal work to a War Department framework under the Board of Engineers for Internal Improvements.^[10][11]

Appointed under War Department authority, Wever served as superintendent for the Ohio division between Bridgeport (opposite Wheeling) and Zanesville, a distance of about 70 miles.^[12]: 32 The Chief Engineer’s instructions for the western continuation appear in H. Doc. 19-1-51 (January 21, 1826), reflecting the engineer-board system’s procedural controls for plans, measurements, and reporting.^[13]

Organization and superintendent authority. Wever let work in short concurrent sections, separating earthwork and metaling from major masonry; the superintendent’s office applied common specifications, measurement rules, and inspection routines across contracts.^{[12]: 33–41} Within these standards he could subdivide or combine sections, approve local stone sources, accept or reject materials and workmanship, order minor plan and quantity adjustments responsive to geology and hydrology, sequence lettings to match seasons and appropriations, and certify progress estimates from standardized field books.^{[12]: 40–41} Jonathan Knight’s guidance favored masonry at short spans near sound rock and timber superstructures where suitable stone or span length dictated, often with timber set on masonry abutments and sheathed for weatherproofing.^{[12]: 8, 33–49}

Progress and reporting. By late 1826–1827, multiple sections between Wheeling and Zanesville were surveyed and under contract. In his final annual report (dated November 18, 1828; transmitted December 11, 1828), Wever reported about 52 miles completed from the Ohio River to west of Cambridge, with the balance to Zanesville under contract, subject to appropriations.^[1] In 1829, with the administrative change to the Andrew Jackson administration, James Hampson succeeded Wever on the Ohio divisions; 1830–1832 documents list Hampson as superintendent east or west of Zanesville, reflecting reassignments then in effect.^{[12]: 32 [14][15]}

An 1833 American Railroad Journal summary for the Ohio division listed forty-two stone-arch bridges and two covered timber bridges—at Wills Creek (Cambridge, 1828) and Big Salt Creek (1829).^{[16][12]: 9, 32} A modern guide summarizes the corridor and its surviving works.^[17]

In 1828 the B&O hired Wever as superintendent of construction for its main line, working alongside engineers such as Stephen H. Long, William G. McNeill, and Jonathan Knight.^[18][19] He oversaw early structures including the Carrollton Viaduct (1828–1829) over Gwynns Falls and the Patterson Viaduct (1829) on the Patapsco River.^[2][20] Historians describe governance and cost-control debates on the early B&O that intersected with engineering choices during this first-generation program.^[21] Wever resigned effective July 1, 1836, the day B&O president Philip E. Thomas also resigned.^[19]

The B&O’s first Potomac crossing at Harpers Ferry was a covered wooden-truss bridge designed under Chief Engineer Benjamin H. Latrobe Jr. using his arch-brace (Latrobian) truss and executed by master builder Lewis Wernwag. Construction began with the abutments and river piers in 1835–1836, followed by truss erection in 1836–1837; contemporary schematics indicate seven main river spans of roughly 124–135 ft and a skewed canal span of about 122 ft (overall length near 875 ft).^[22] The structure initially carried both the railroad and a turnpike road with gates and a watchman because of a mid-river grade crossing; a narrow downstream walkway allowed tow animals to cross between the Shenandoah lock and the C&O Canal river lock and was removed in 1841.^[22]

Soon after opening, several floor beams fractured under train load and mid-river piers exhibited cracking and settlement. Latrobe raised the superstructure, contracted Wernwag to shore and re-board sections, and let a separate contract to rebuild and armor the piers with riprap and new downstream copings; subsequent reinforcement added timber members between floor beams, with Wendel Bollman working as a carpenter on these repairs. A board inquiry attributed the defective river piers to shallow foundations and inferior stone, faulting contractor Charles Wilson and construction superintendent Caspar Wever; correspondence indicated that Wilson obtained pier stone from a quarry owned by Wever and that approved design changes reduced foundation size and ashlar dimensions, though collusion was not established.^[22]

In 1832, Wever served as superintendent for a project to rebuild Pennsylvania Avenue in Washington.^[23] Congressional materials also record proposals concerning reconstruction of the Potomac Long Bridge in 1834.^[24]

In the 1830s, Wever platted and attempted to develop the industrial village of Weverton, Maryland, near Lock 31 of the C&O Canal, with water-powered mills, a file factory, and stone-working. The Maryland General Assembly incorporated the Weverton Manufacturing Company by Chapter 144 of the Acts of 1834 (amended in 1836), promoting the site’s river power and dual access to canal and rail.^[25] Archival studies of the canal corridor describe nearby quarrying, a file factory operating by the mid-1840s, and limited long-term growth due to floods and markets before the Civil War.^[26][27] Wever also joined incorporations for the Weverton and Boonsboro' Turnpike Company (1846) and a local mutual insurance company (1850).^[28][29]

Wever resided near Petersville and the Weverton area in later years and died in Maryland on February 7, 1861. A Hagerstown newspaper carried his obituary in March 1861.^[30][31]

Structures from Wever’s National Road and B&O tenure, including the Carrollton Viaduct (1829) and early B&O viaducts in Maryland, are recognized as historic civil engineering landmarks.^[32][33] Scholarship on early B&O governance highlights debates over organization and costs that framed technical decisions during the railroad’s first decade.^[34]

"""