SH 73/SH 87 SB over Cow Bayou
Orange County, Texas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SH 73/SH 87 SB over Cow Bayou in Orange County, Texas, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1972, making it 53 years old at the 2025 inventory.
- It carries about 12,434 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 85 of the 176 inventoried bridges in Orange County rated fair (48.3%); 4 (2.3%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: superstructure 7 to 6.
- Its most recent inspection on record is dated March 2024, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (30.04483, -93.8214)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 6 | Satisfactory condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 2,524 ft |
| Location | 0.40 Mi S of SH 62 |
| NBI structure number | 201810030601021 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Texas department of transportation.
Busiest bridges in Orange County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ih 10 over Turnaround | 2006 | 77,615 | Good |
| Ih 10 over Asher Turnaround | 2006 | 76,169 | Good |
| Ih 10 over Bonner Turnaround | 2006 | 76,169 | Good |
| Ih 10 over FM 105 / Main Street | 2009 | 76,169 | Good |
| Ih 10 over Terry Gully | 1952 | 60,095 | Fair |
| Ih 10 over FM 1132 | 2008 | 60,095 | Good |
All bridges nearby: Orange County, TX bridge conditions · every bridge in Orange County · Texas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.