Eighteenth Street over I 84;eighteenth ST Gs
Fair Condition55 years old1,600 vehicles/day
Location
| State | Idaho |
| County | Elmore |
| Location | 1.0 W. Mountain Home |
| Carries | Eighteenth Street |
| Crosses | I 84;eighteenth ST Gs |
| Coordinates | 43.14964, -115.67753 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 300.9 ft (91.7 m) |
| Max Span | 117.5 ft (35.8 m) |
| Deck Width | 33.1 ft (10.1 m) |
| Deck Area | 926.2 sq m |
| Main Spans | 2 |
| Year Built | 1971 |
Traffic
| Avg Daily Traffic | 1,600 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 000000000027890 |