IRR BIA Route 1 over Tyson Wash

Good Condition4 years old1,900 vehicles/day

Location

StateArizona
CountyLa Paz
Location1.6km S Of BIA 1/56 Inter
CarriesIRR BIA Route 1
CrossesTyson Wash
Coordinates33.74967, -114.46858

Condition Ratings

Overall ConditionGood
Deck9 (Excellent)
Superstructure9 (Excellent)
Substructure9 (Excellent)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length600.1 ft (182.9 m)
Max Span98.1 ft (29.9 m)
Deck Width43.0 ft (13.1 m)
Deck Area2396.0 sq m
Main Spans6
Year Built2022

Traffic

Avg Daily Traffic1,900 (2024)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last Inspection224
Inspection FrequencyEvery 24 months
OwnerBureau of Indian Affairs
Historical SignificanceBridge is not eligible for the National Register
Structure Number0000H51603B0260

Nearby Bridges

IRR BIA Route 1 over Tyson Waterway 0.1 mi Fair IRR BIA RTE 60 over Main Drain 1.3 mi Poor IRR BIA RTE 56 over Main Drain 1.5 mi Poor IRR BIA RTE 1 over Mesa Drain 1.9 mi Fair IRR BIA RTE 56 over Usbr Drain 2.2 mi Fair IRR BIA RTE 60 over Usbr Drain 2.2 mi Fair IRR BIA RTE 50 over Main Drain 4.3 mi Fair IRR BIA RTE 50 over Usbr Main Drain 4.9 mi Fair