Ia 21 over Stream

Fair Condition67 years old2,480 vehicles/day

Location

StateIowa
CountyBlack Hawk
Location4.6 Mi. S Of Jct. US 20
CarriesIa 21
CrossesStream
Coordinates42.38644, -92.34714

Condition Ratings

Overall ConditionFair
Channel/Waterway6 (Satisfactory)
Culvert6 (Satisfactory)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length21.0 ft (6.4 m)
Max Span9.8 ft (3 m)
Deck Area89.6 sq m
Main Spans2
Year Built1959

Traffic

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

Inspection & Ownership

Last Inspection423
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000000014980

Nearby Bridges

Hammond AVE over Trib To Miller Creek 0.5 mi Good Ia 21 over Stream 0.6 mi Fair Kimball AVE over Trib To Miller Creek 0.9 mi Fair Hess RD over Trib To Miller Creek 1.8 mi Good Hess RD over Trib To Miller Creek 2.2 mi Poor W Quarry RD over Trib To Miller Creek 2.2 mi Good Kimball AVE over Trib To Miller Creek 2.3 mi Good Ia 21 over Stream 2.3 mi Fair Ansborough AVE over Trib To Miller Creek 2.3 mi Good E Quarry RD over Trib To Miller Creek 2.5 mi Good