US Bridges

US 151 NB over White Water Creek

Fair

Dubuque County, Iowa · 1.8 Mi. S of Jct. SR D53 · Structure no. 000000000024090

Built
1971
54 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
221 ft
3 main spans
Daily traffic
9,300
2022 count
Owner
State
State Highway Agency

About this bridge

US 151 NB over White Water Creek is a prestressed concrete stringer/multi-beam or girder carrying US 151 NB over White Water Creek in Dubuque County, Iowa. It was built in 1971, so it is 54 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 9,300 vehicles a day, roughly 16% of them trucks, projected to reach 9,300 by 2043. The structure is 221 ft (67.4 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 151 NB
CrossesWhite Water Creek
Location1.8 Mi. S of Jct. SR D53
RouteU.S. Route 151
StateIowa
Coordinates42.31826, -90.92446
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.7 US tons
Inventory rating47.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length221 ft (67.4 m)
Longest span82 ft (25 m)
Deck width48 ft (14.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,300 (2022)
Projected traffic9,300 by 2043
Trucks16%
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 US 151 NB over White Water Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is US 151 NB over White Water Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does US 151 NB over White Water Creek carry?

About 9,300 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is US 151 NB over White Water Creek?

The structure is 221 ft (67.4 m) long with a longest span of 82 ft (25 m) and a deck 48 ft wide.

Who owns US 151 NB over White Water Creek?

It is owned by the State Highway Agency.