US Bridges

Greenhill Road over W Br Dry Run Creek

Good

Black Hawk County, Iowa · 0.4 MI N of Univ. Ave · Structure no. 000000000505480

Built
2018
7 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete Continuous
Length
71 ft
3 main spans
Daily traffic
143
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Greenhill Road over W Br Dry Run Creek is a concrete continuous slab carrying Greenhill Road over W Br Dry Run Creek in Black Hawk County, Iowa. It was built in 2018, so it is 7 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 143 vehicles a day, projected to reach 143 by 2044. The structure is 71 ft (21.6 m) long and 51 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesGreenhill Road
CrossesW Br Dry Run Creek
Location0.4 MI N of Univ. Ave
RouteCity Street 0
StateIowa
Coordinates42.50813, -92.47534
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.2 US tons
Inventory rating48.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length71 ft (21.6 m)
Longest span28 ft (8.5 m)
Deck width51 ft (15.6 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic143 (2022)
Projected traffic143 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Greenhill Road over W Br Dry Run Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is Greenhill Road over W Br Dry Run Creek 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 March 2024.

How much traffic does Greenhill Road over W Br Dry Run Creek carry?

About 143 vehicles per day (2022 count).

How long is Greenhill Road over W Br Dry Run Creek?

The structure is 71 ft (21.6 m) long with a longest span of 28 ft (8.5 m) and a deck 51 ft wide.

Who owns Greenhill Road over W Br Dry Run Creek?

It is owned by the City or Municipal Highway Agency.