Marquis RD over Shell Rock Riv Overflow

Fair Condition34 years old207 vehicles/day

Location

StateIowa
CountyBlack Hawk
Location90-14-04-07-20
CarriesMarquis RD
CrossesShell Rock Riv Overflow
Coordinates42.64223, -92.49560

Condition Ratings

Overall ConditionFair
Deck5 (Fair)
Superstructure6 (Satisfactory)
Substructure5 (Fair)
Channel/Waterway7 (Good)
Scour Critical3 — Scour critical

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length74.1 ft (22.6 m)
Max Span19.0 ft (5.8 m)
Deck Width16.1 ft (4.9 m)
Deck Area110.7 sq m
Main Spans4
Year Built1992

Traffic

Avg Daily Traffic207 (2022)
Truck Traffic7%
Lanes On Bridge1

Inspection & Ownership

Last Inspection424
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000000076751

Nearby Bridges