Izaak Walton Road over Route 29 NBL & SBL
Amherst County, Virginia · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Izaak Walton Road over Route 29 NBL & SBL in Amherst County, Virginia, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 7 (good condition) on the 0-9 scale.
- It was built in 2004, making it 21 years old at the 2025 inventory.
- It carries about 706 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 59 of the 157 inventoried bridges in Amherst County rated good (37.6%); 8 (5.1%) 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 December 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 → (37.50398, -79.06652)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 274 ft |
| Location | 1.20-Rt 604 / 0.90-Rt 670 |
| NBI structure number | 000000000025958 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | December 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 Virginia department of transportation.
Busiest bridges in Amherst County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| NBL&SBL Amhst Hwy over Rutledge Creek | 1970 | 22,784 | Fair |
| 29 Bypass over South Fork Stovall Creek | 2005 | 17,463 | Fair |
| 29 Bypass over Middle Fork Stovall Crk | 2005 | 17,463 | Fair |
| 29 N & SBL Bypass over Higginbotham Creek | 2005 | 17,463 | Good |
| 29 N & SBL Bypass over Branch Patridge Creek | 2005 | 17,463 | Good |
| 29 Bypass over North Fork Stovall Creek | 2005 | 17,463 | Good |
All bridges nearby: Amherst County, VA bridge conditions · every bridge in Amherst County · Virginia bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.