Chamber Way over I-5
Lewis County, Washington · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Chamber Way over I-5 in Lewis County, Washington, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2018, making it 7 years old at the 2025 inventory.
- It carries about 12,588 vehicles a day (traffic count year 2012).
- Its listed owner is the state highway agency.
- It is one of 209 of the 420 inventoried bridges in Lewis County rated good (49.8%); 17 (4.0%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated November 2024, on a 24-month routine inspection cycle.
- 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 → (46.67548, -122.97566)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 129 ft |
| Location | 1.1 N Jct SR 6 |
| NBI structure number | 0018991A0000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | November 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Washington department of transportation.
Busiest bridges in Lewis County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-5 over Salzer Creek | 1951 | 38,131 | Fair |
| I-5 over Cw Ry | 1953 | 36,296 | Fair |
| I-5 over Np Ry & Dillenbaugh CR | 1954 | 36,296 | Fair |
| I-5 over RR & Reynolds Rd. | 2013 | 34,754 | Good |
| I-5 over Blakeslee Jct RR | 2015 | 34,754 | Good |
| I-5 over Dillenbaugh Creek | 1952 | 32,739 | Good |
All bridges nearby: Lewis County, WA bridge conditions · every bridge in Lewis County · Washington bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.