US Bridges

W Ridgeway Ave over S Br Dry Run

Poor

Black Hawk County, Iowa · A15000600 · Structure no. 000000000001045

Built
1900
125 years old, rebuilt 2008
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
1,049
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

W Ridgeway Ave over S Br Dry Run is a steel stringer/multi-beam or girder carrying W Ridgeway Ave over S Br Dry Run in Black Hawk County, Iowa. It was built in 1900 and reconstructed in 2008, so it is 125 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,049 vehicles a day, projected to reach 1,049 by 2044. The structure is 30 ft (9.1 m) long and 28 ft wide.

Location

Open in Google Maps
CarriesW Ridgeway Ave
CrossesS Br Dry Run
LocationA15000600
RouteCity Street 0
CountyBlack Hawk County
StateIowa
Coordinates42.46954, -92.46892
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.5 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span29 ft (8.8 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,049 (2022)
Projected traffic1,049 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was W Ridgeway Ave over S Br Dry Run built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 2008.

What condition is W Ridgeway Ave over S Br Dry Run in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does W Ridgeway Ave over S Br Dry Run carry?

About 1,049 vehicles per day (2022 count).

How long is W Ridgeway Ave over S Br Dry Run?

The structure is 30 ft (9.1 m) long with a longest span of 29 ft (8.8 m) and a deck 28 ft wide.

Who owns W Ridgeway Ave over S Br Dry Run?

It is owned by the City or Municipal Highway Agency.