450th over Shellrock River

Good Condition62 years old79 vehicles/day

Location

StateIowa
CountyWorth
Location099200901
Carries450th
CrossesShellrock River
Coordinates43.41509, -93.22057

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length169.0 ft (51.5 m)
Max Span56.1 ft (17.1 m)
Deck Width30.2 ft (9.2 m)
Deck Area473.8 sq m
Main Spans3
Year Built1964

Traffic

Avg Daily Traffic79 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000000356050

Nearby Bridges

US 65 over Shellrock River 1.2 mi Good 4th ST over Drainage Ditch 1.4 mi Good 2nd AVE S over Shell Rock River 1.8 mi Fair 4th ST over Shellrock River 1.9 mi Fair Central AVE N over Shellrock River 2.1 mi Poor Co RD 105 over Drainage Ditch 2.2 mi Fair Co RD 105 over Drainage Ditch 2.3 mi Fair 430th over Shellrock River 2.3 mi Good Co RD 105 over Drainage Ditch 2.5 mi Fair Co RD 105 over Elk Creek 2.7 mi Fair