US 90 over Cowan Bayou
Hancock County, Mississippi · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 90 over Cowan Bayou in Hancock County, Mississippi, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2009, making it 16 years old at the 2025 inventory.
- It carries about 2,600 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 68 of the 107 inventoried bridges in Hancock County rated good (63.6%); 8 (7.5%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (30.24228, -89.60562)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete slab |
| Length | about 640 ft |
| Location | 0.5 Mi E La State Line |
| NBI structure number | 210009002300050 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Mississippi department of transportation.
Busiest bridges in Hancock County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 10 over Jourdan River | 2004 | 53,000 | Fair |
| I 10 over East Pearl River | 1966 | 47,000 | Fair |
| I 10 over SR 607 | 1967 | 23,500 | Good |
| I 10 over SR 607 | 1967 | 23,000 | Good |
| I 10 over Stream | 1967 | 20,500 | Good |
| I 10 over Stream | 1967 | 20,500 | Good |
All bridges nearby: Hancock County, MS bridge conditions · every bridge in Hancock County · Mississippi bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.