The proposed project was located on the existing I-40 in Caddo County, Oklahoma. BETI completed a falling weight deflectometer (FWD) survey and pavement evaluation for the I-40 from MP 86 to MP 104 in Caddo County, Oklahoma.

The existing I-40 consists of four-lanes divided interstate highway. BETI performed the pavement evaluation, ground penetration radar (GPR) and FWD tests on the outside lanes of both eastbound and westbound lanes. The FWD tests were performed on the existing pavement on the outside wheel path.  The spacing between each test points was 250 feet in staggered pattern.  Locations of the test points were marked in the field by BETI field crews.  Additionally, GPR tests were performed on the existing pavement.  Pavement cores were also performed on the outside lanes to correlate the GPR data and the pavement thickness. The backcalculation analysis of the FWD tests were performed using Modulus 5.1 program. 


 

 

 

The proposed project consists of a new alignment near the existing US Highway 59 and reconstruction of the existing highway. The proposed project site is located within the Wildhorse Mountain in Sequoyah County, Oklahoma. BETI performed cut and fill sections soil survey, and provided recommendations on slopes of cut and fill sections, rippability of bedrock materials, as well as general site development.   

Extensive dozer works were used to provide the access to the test hole locations, with the test holes’ highest ground elevation of 722.37 ft, and the lowest of 493.11 ft.  BETI performed cut and fill sections soil survey using CME 45, CME 75 and CME 55HT.  Standard drilling methods including mud drilling and bedrock coring were used. Laboratory testings include natural moisture contents, Atterberg limits values, grain size distributions, Slake Durability Tests, unconsolidated-undrained (UU) triaxial compression Tests, consolidated-undrained (CU) compression Tests, Unconfined Compression Strength of Intact Rock Core, Point Load Strength Index of Rock, Rock Quality Designation (RQD), and Percent Recovery of Intact Rock Cores.


 

The proposed facility consists of two single story buildings of 876,000 and 30,000 square feet, respectively. The proposed project is located on Reno Ave. between Portland and Meridian Avenues. in Oklahoma City, Oklahoma. 

BETI performed subsurface exploration, and provided recommendations concerning the design and construction of the foundations, pavements, review of previous subsurface exploration, evaluation of the existing pavement on Utah Ave. and general site development. Foundation recommendations including shallow foundation, mat foundation, drilled shaft foundation, driven pile and rammed aggregate pier intermediate foundations.