Westbound SR 237 crosses over I-66 and the Orange Line, which runs in I-66's median, with US 29; eastbound SR 237 crosses the Interstate and transit line on its own bridge.
Westbound SR 237 crosses over I-66 and the Orange Line, which is situated within I-66's median, intersecting with US 29. Conversely, eastbound SR 237 crosses the Interstate and transit line on a separate bridge.