IRR BIA Route 12 over Iowa Drainage Ditch

Good Condition25 years old300 vehicles/day

Location

StateIowa
CountyTama
LocationSettlement Road
CarriesIRR BIA Route 12
CrossesIowa Drainage Ditch
Coordinates41.99849, -92.67104

Condition Ratings

Overall ConditionGood
Channel/Waterway7 (Good)
Culvert7 (Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length24.3 ft (7.4 m)
Max Span12.1 ft (3.7 m)
Deck Width53.8 ft (16.4 m)
Deck Area121.4 sq m
Main Spans2
Year Built2001

Traffic

Avg Daily Traffic300 (2024)
Truck Traffic25%
Lanes On Bridge2

Inspection & Ownership

Last Inspection424
Inspection FrequencyEvery 24 months
OwnerBureau of Indian Affairs
Historical SignificanceBridge is not eligible for the National Register
Structure Number00000000000F411

Nearby Bridges

IRR BIA RTE 1101 over Drainage Ditch 0.1 mi Good US 30 over Stream 0.5 mi Good IRR Local over Iowa River Overflow 1.4 mi Poor Irr-local over Iowa River Overflow 1.5 mi Poor US 30 WB over Iowa River East Overflow 1.7 mi Good US 30 EB over Iowa River East Overflow 1.7 mi Good Irr-local over Iowa River 1.7 mi Poor US 30 WB over Iowa River 2.2 mi Good US 30 EB over Iowa River 2.3 mi Good Irr-fm over Raven Creek 2.3 mi Fair