US Bridges

NB Ia 27 Ramp over Dry Run Creek Bike Path

Good

Black Hawk County, Iowa · 1.3 Mi.S.Of Jct.Us 218 · Structure no. 000000000607595

Built
1992
33 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
483 ft
5 main spans
Daily traffic
3,360
2022 count
Owner
State
State Highway Agency

About this bridge

NB Ia 27 Ramp over Dry Run Creek Bike Path is a prestressed concrete stringer/multi-beam or girder carrying NB Ia 27 Ramp over Dry Run Creek Bike Path in Black Hawk County, Iowa. It was built in 1992, so it is 33 years old, younger 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 3,360 vehicles a day, roughly 3% of them trucks, projected to reach 3,360 by 2043. The structure is 483 ft (147.2 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNB Ia 27 Ramp
CrossesDry Run Creek Bike Path
Location1.3 Mi.S.Of Jct.Us 218
RouteState Highway 27
CountyBlack Hawk County
StateIowa
Coordinates42.52513, -92.43799
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating97 US tons
Inventory rating55.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length483 ft (147.2 m)
Longest span102 ft (31.1 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,360 (2022)
Projected traffic3,360 by 2043
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 NB Ia 27 Ramp over Dry Run Creek Bike Path built?

It was built in 1992, making it 33 years old in 2025.

What condition is NB Ia 27 Ramp over Dry Run Creek Bike Path 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 July 2023.

How much traffic does NB Ia 27 Ramp over Dry Run Creek Bike Path carry?

About 3,360 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is NB Ia 27 Ramp over Dry Run Creek Bike Path?

The structure is 483 ft (147.2 m) long with a longest span of 102 ft (31.1 m) and a deck 39 ft wide.

Who owns NB Ia 27 Ramp over Dry Run Creek Bike Path?

It is owned by the State Highway Agency.