IRR BIA RTE 4 over Main Canal

Fair Condition44 years old400 vehicles/day

Location

StateArizona
CountyLa Paz
Location2.1 Km West Of BIA 3
CarriesIRR BIA RTE 4
CrossesMain Canal
Coordinates34.10790, -114.32470

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway4 (Poor)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length67.9 ft (20.7 m)
Max Span25.9 ft (7.9 m)
Deck Width30.2 ft (9.2 m)
Deck Area190.4 sq m
Main Spans3
Year Built1982

Traffic

Avg Daily Traffic400 (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 Number00000000000H043

Nearby Bridges

IRR BIA RTE 10 over Main Canal 1.5 mi Fair IRR BIA RTE 39 over Lateral Canal 19- R 1.5 mi Good IRR BIA RTE 1 over Main Irrigation Canal 1.6 mi Fair IRR BIA RTE 501 over Main Canal 3.0 mi Fair State Route 62 over Colorado River 3.9 mi Fair 95 S over Colorado River 3.9 mi Fair IRR BIA RTE 1 over Main Drain 3.9 mi Poor IRR BIA RTE 10 over Main Drain 5.0 mi Fair