N 3RD E over Rexburg Canal
Madison County, Idaho · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- N 3RD E over Rexburg Canal in Madison County, Idaho, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1980, making it 45 years old at the 2025 inventory.
- It carries about 800 vehicles a day (traffic count year 2023).
- Its listed owner is a city or municipal highway agency.
- It is one of 54 of the 80 inventoried bridges in Madison County rated fair (67.5%); 0 (0.0%) 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 April 2023, 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 → (43.83192, -111.77519)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete frame |
| Length | about 24 ft |
| Location | In Rexburg;barney Dairy |
| NBI structure number | 000000000033000 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | April 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Idaho department of transportation.
Busiest bridges in Madison County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SH 33 over Rexburg Canal | 1938 | 20,000 | Fair |
| SH 33 over S.fk.teton River | 1971 | 17,000 | Fair |
| US 20 Ebl over Stp 7726;S.REXBURG Ic | 1981 | 15,750 | Good |
| US 20 Wbl over Stp 7726;S.REXBURG Ic | 1981 | 15,750 | Good |
| US 20 Ebl over Texas Slough | 1981 | 15,250 | Good |
| US 20 Wbl over Texas Slough | 1981 | 15,250 | Good |
All bridges nearby: Madison County, ID bridge conditions · every bridge in Madison County · Idaho bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.