Structure 170940AA0278001 · Grimes County, TX
Carries CR 155 over Cat Creek, 0.3 Mi E Of SH 90.
Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.
How ratings work20 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.
| State | Texas |
| County | Grimes |
| Location | 0.3 Mi E Of SH 90 |
| Carries | CR 155 |
| Crosses | Cat Creek |
| Coordinates | 30.67344, -95.97410 |
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 20.0 ft (6.1 m) |
| Max Span | 19.0 ft (5.8 m) |
| Deck Width | 16.1 ft (4.9 m) |
| Deck Area | 29.9 sq m |
| Main Spans | 1 |
| Year Built | 1940 |
| Avg Daily Traffic | 200 (2010) |
| Lanes On Bridge | 1 |
| Last Inspection | December 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 170940AA0278001 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.