Grain East RD over Little Porcupine CR 055
Fair Condition41 years old50 vehicles/day
Location
| State | Montana |
| County | Valley |
| Location | 7m W Lustre |
| Carries | Grain East RD |
| Crosses | Little Porcupine CR 055 |
| Coordinates | 48.40438, -106.07981 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 65.0 ft (19.8 m) |
| Max Span | 61.0 ft (18.6 m) |
| Deck Width | 24.3 ft (7.4 m) |
| Deck Area | 146.5 sq m |
| Main Spans | 1 |
| Year Built | 1985 |
Traffic
| Avg Daily Traffic | 50 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L53201008+01001 |