"The route runs 20.087 mi (32.327 km) from MS 9 north of Bruce, Calhoun County north to MS 7 south of Oxford, Lafayette County." - this is hard to read. Are some commas or semicolons needed?
"Mississippi Highway 9W (MS 9W) is a state highway located in northern Mississippi. The route runs 20.087 mi (32.327 km) from MS 9 north of Bruce in Calhoun County and heads north to MS 7 south of Oxford in Lafayette County."
Do you mean MS 9 starts north of Bruce in Calhoun County and then heads north to MS 7 which is south of Oxford in Lafayette County?
Do you mean that MS 7 is south of Oxford in Lafayette County? Or do you man that MS 7 heads north to MS 7, then south of Oxford in Lafayette?