Irr/us64/491 Wbl over San Juan River
Poor Condition90 years old16,829 vehicles/day
Location
| State | New Mexico |
| County | San Juan |
| Location | Us-491/us-64 In Shiprock |
| Carries | Irr/us64/491 Wbl |
| Crosses | San Juan River |
| Coordinates | 36.78122, -108.69206 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 3 (Serious) |
| Superstructure | 4 (Poor) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Truss - Thru |
| Total Length | 1004.9 ft (306.3 m) |
| Max Span | 166.0 ft (50.6 m) |
| Deck Width | 35.1 ft (10.7 m) |
| Deck Area | 3277.4 sq m |
| Main Spans | 6 |
| Year Built | 1936 |
Traffic
| Avg Daily Traffic | 16,829 (2023) |
| Truck Traffic | 13% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 224 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 000000000001792 |