Ia 21 over Stream

Fair Condition67 years old2,480 vehicles/day

Location

StateIowa
CountyBlack Hawk
Location3.1 Mi. S Of Jct. SR D35
CarriesIa 21
CrossesStream
Coordinates42.35351, -92.34735

Condition Ratings

Overall ConditionFair
Channel/Waterway7 (Good)
Culvert6 (Satisfactory)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length33.1 ft (10.1 m)
Max Span9.8 ft (3 m)
Deck Area141.4 sq m
Main Spans3
Year Built1959

Traffic

Avg Daily Traffic2,480 (2022)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last Inspection623
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000000014970

Nearby Bridges

Kimball AVE over Trib To Miller Creek 0.5 mi Good Hammond AVE over Trib To Miller Creek 0.5 mi Good W Quarry RD over Trib To Miller Creek 0.7 mi Good E Quarry RD over Trib To Miller Creek 1.2 mi Good Hess RD over Trib To Miller Creek 1.5 mi Good Ansborough AVE over Trib To Miller Creek 1.6 mi Good Hess RD over Trib To Miller Creek 1.6 mi Poor Ansborough AVE over Miller Creek 1.8 mi Good Hess RD over Trib To Miller Creek 1.9 mi Good W Eagle Road over Miller Creek 1.9 mi Good