SH 21 over S.fk.payette R;lowman Br
Fair Condition78 years old410 vehicles/day
Location
| State | Idaho |
| County | Boise |
| Location | At Lowman |
| Carries | SH 21 |
| Crosses | S.fk.payette R;lowman Br |
| Coordinates | 44.08083, -115.61912 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 245.1 ft (74.7 m) |
| Max Span | 58.7 ft (17.9 m) |
| Deck Width | 34.1 ft (10.4 m) |
| Deck Area | 776.9 sq m |
| Main Spans | 6 |
| Year Built | 1948 |
Traffic
| Avg Daily Traffic | 410 (2023) |
| Truck Traffic | 17% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 000000000012885 |