IRR BIA Route 1 over Tyson Waterway

Fair Condition68 years old1,700 vehicles/day

Location

StateArizona
CountyLa Paz
Location1.6 Km S Of BIA 1/56 Int.
CarriesIRR BIA Route 1
CrossesTyson Waterway
Coordinates33.75161, -114.46860

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure7 (Good)
Channel/Waterway7 (Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length93.2 ft (28.4 m)
Max Span29.9 ft (9.1 m)
Deck Width30.8 ft (9.4 m)
Deck Area267.0 sq m
Main Spans3
Year Built1958

Traffic

Avg Daily Traffic1,700 (2019)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last Inspection419
Inspection FrequencyEvery 24 months
OwnerBureau of Indian Affairs
Historical SignificanceBridge is not eligible for the National Register
Structure Number00000000000H008

Nearby Bridges

IRR BIA Route 1 over Tyson Wash 0.1 mi Good IRR BIA RTE 56 over Main Drain 1.4 mi Poor IRR BIA RTE 60 over Main Drain 1.4 mi Poor IRR BIA RTE 1 over Mesa Drain 1.8 mi Fair IRR BIA RTE 56 over Usbr Drain 2.1 mi Fair IRR BIA RTE 60 over Usbr Drain 2.2 mi Fair IRR BIA RTE 50 over Main Drain 4.2 mi Fair IRR BIA RTE 50 over Usbr Main Drain 4.8 mi Fair