Coll 7430 over Mirdan Canal
Garfield County, Nebraska · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Coll 7430 over Mirdan Canal in Garfield County, Nebraska, 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 1984, making it 41 years old at the 2025 inventory.
- It carries about 50 vehicles a day (traffic count year 1998).
- Its listed owner is the county highway agency.
- It is one of 9 of the 24 inventoried bridges in Garfield County rated fair (37.5%); 1 (4.2%) 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 October 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 → (41.7984, -99.1916)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair 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 57 ft |
| Location | 1N 3W Burwell |
| NBI structure number | C003604205 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Nebraska department of transportation.
Busiest bridges in Garfield County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| N11/n91 over North Loup River | 1940 | 2,065 | Good |
| N11 over Stream | 1996 | 1,840 | Good |
| N91 over Mirdan Canal | 1982 | 1,385 | Good |
| N91 over Stream | 1950 | 1,385 | Good |
| N91 over North Loup River Trib | 1950 | 1,385 | Good |
| N11 over Burwell Sumter Canal | 1956 | 1,065 | Fair |
All bridges nearby: Garfield County, NE bridge conditions · every bridge in Garfield County · Nebraska bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.