Mann Rd over Un-named Stream
Snohomish County, Washington · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mann Rd over Un-named Stream in Snohomish County, Washington, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2023, making it 2 years old at the 2025 inventory.
- It carries about 1,166 vehicles a day (traffic count year 2019).
- Its listed owner is the county highway agency.
- It is one of 248 of the 500 inventoried bridges in Snohomish County rated good (49.6%); 20 (4.0%) 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 → (47.84972, -121.8031)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 8 | Very good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 20 ft |
| Location | 1.4 SE Jct SR2 |
| NBI structure number | 089396000000000 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Washington department of transportation.
Busiest bridges in Snohomish County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-5 over 212TH St SW | 1963 | 98,485 | Fair |
| I-5 over 212TH St SW | 1963 | 98,485 | Fair |
| I-5 over 52ND Ave W | 1963 | 98,485 | Good |
| I-5 over 52ND Ave W | 1963 | 98,485 | Fair |
| I-5 over Lowell Road | 1950 | 94,939 | Good |
| I-5 over Lowell Road | 1967 | 94,939 | Good |
All bridges nearby: Snohomish County, WA bridge conditions · every bridge in Snohomish County · Washington bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.