US Bridges

Pilot Grove RD over White Water Creek

Good

Dubuque County, Iowa · 088012403 · Structure no. 000000000146771

Built
2013
12 years old
Condition
Good
inspected May 2023
Type
Slab
Concrete Continuous
Length
100 ft
3 main spans
Daily traffic
79
2021 count
Owner
County
County Highway Agency

About this bridge

Pilot Grove RD over White Water Creek is a concrete continuous slab carrying Pilot Grove RD over White Water Creek in Dubuque County, Iowa. It was built in 2013, so it is 12 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 79 vehicles a day, roughly 20% of them trucks, projected to reach 79 by 2043. The structure is 100 ft (30.5 m) long and 33 ft wide.

CarriesPilot Grove RD
CrossesWhite Water Creek
Location088012403
RouteCounty Highway 0
StateIowa
Coordinates42.41733, -90.91039
Functional classRural Local

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 inspectionMay 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating57.5 US tons
Inventory rating44.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length100 ft (30.5 m)
Longest span39 ft (11.9 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic79 (2021)
Projected traffic79 by 2043
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Pilot Grove RD over White Water Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is Pilot Grove RD over White Water 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 May 2023.

How much traffic does Pilot Grove RD over White Water Creek carry?

About 79 vehicles per day (2021 count), of which roughly 20% are trucks.

How long is Pilot Grove RD over White Water Creek?

The structure is 100 ft (30.5 m) long with a longest span of 39 ft (11.9 m) and a deck 33 ft wide.

Who owns Pilot Grove RD over White Water Creek?

It is owned by the County Highway Agency.