Ia 21 over Drainage Ditch

Fair Condition66 years old2,600 vehicles/day

Location

StateIowa
CountyTama
Location0.3 Mile N Of N Jct Ia 8
CarriesIa 21
CrossesDrainage Ditch
Coordinates42.18555, -92.34764

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 Area129.3 sq m
Main Spans3
Year Built1960

Traffic

Avg Daily Traffic2,600 (2022)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last Inspection124
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000000049670

Nearby Bridges

Local over Small Stream 0.5 mi Fair Local over Small 0.6 mi Fair Local over Rock Creek 1.5 mi Fair FM over Rock Creek 1.7 mi Fair Local over Small Stream 1.7 mi Fair FM over Rock Creek 2.8 mi Good W AVE over East Branch Salt Creek 3.0 mi Good FM over Branch Salt Creek 3.1 mi Fair Local over East Branch Salt Creek 3.3 mi Poor FM over Rock Ck 3.5 mi Poor