Texas Department of Transportation Environmental Affairs
Archeologists from TRC Mariah Associates Inc. of Austin conducted mitigation excavations at the Lino site (41WB437) during a six-week period in April and May 1998 under contract with the Texas Department of Transportation, Environmental Affairs Division. The prehistoric archeological site was within the right-of-way of the planned expansion of Highway 83, south of Laredo. A single 196 m2 block measuring 7m north-south by 28 m east-west was investigated following requirements of a contract that stipulated a three-pronged approach to data recovery. First, a Gradall™ was employed to carefully strip 2 to 4 cm thick layers in eight 3m wide areas within the block. Balks measuring 80 cm wide by 120 cm tall were left standing between each 3 m wide Gradall™ -stripped area. The material discovered in situ during the Gradall™ stripping was plotted using a total data station. When clusters of cultural materials were encountered during the Gradall™ stripping, these were designated as features, and a series of manual excavations in 1 by 1 m units were dug around each feature. The matrix surrounding these features was screened and in situ data recorded with the total data station. Feature matrix was collected and floated in the laboratory. A total of 124 m2 were hand excavated around 24 recognized features discovered during Gradall™ stripping. Upon reaching the target depth of 120 cm below the surface, the Gradall™ stripping ceased, having mechanically removed 187 m3 of deposits.
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