US Bridges

Ranchero RD over Drainage

Good

Black Hawk County, Iowa · City Bridge No. 27 · Structure no. 000000000500960

Built
1973
52 years old
Condition
Good
inspected June 2023
Type
Slab
Concrete
Length
45 ft
1 main span
Daily traffic
1,638
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Ranchero RD over Drainage is a concrete slab carrying Ranchero RD over Drainage in Black Hawk County, Iowa. It was built in 1973, so it is 52 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,638 vehicles a day, projected to reach 1,638 by 2043. The structure is 45 ft (13.7 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesRanchero RD
CrossesDrainage
LocationCity Bridge No. 27
RouteCity Street 0
CountyBlack Hawk County
StateIowa
Coordinates42.4575, -92.41718
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.1 US tons
Inventory rating19.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length45 ft (13.7 m)
Longest span39 ft (11.9 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,638 (2022)
Projected traffic1,638 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ranchero RD over Drainage built?

It was built in 1973, making it 52 years old in 2025.

What condition is Ranchero RD over Drainage in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does Ranchero RD over Drainage carry?

About 1,638 vehicles per day (2022 count).

How long is Ranchero RD over Drainage?

The structure is 45 ft (13.7 m) long with a longest span of 39 ft (11.9 m) and a deck 26 ft wide.

Who owns Ranchero RD over Drainage?

It is owned by the City or Municipal Highway Agency.