Boise Street over Mill Slough
Fair Condition45 years old200 vehicles/day
Location
| State | Idaho |
| County | Canyon |
| Location | At Middleton Scl |
| Carries | Boise Street |
| Crosses | Mill Slough |
| Coordinates | 43.70286, -116.62122 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Tee Beam |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 24.0 ft (7.3 m) |
| Deck Width | 40.0 ft (12.2 m) |
| Deck Area | 92.7 sq m |
| Main Spans | 1 |
| Year Built | 1981 |
Traffic
| Avg Daily Traffic | 200 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | City/Municipal Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 000000000027325 |