US Bridges

US 52 over Miners Creek

Fair

Clayton County, Iowa · 0.2 Mi. S of Jct. SR C7X · Structure no. 000000000020561

Built
1974
51 years old
Condition
Fair
inspected January 2023
Type
Slab
Concrete Continuous
Length
120 ft
3 main spans
Daily traffic
3,340
2022 count
Owner
State
State Highway Agency

About this bridge

US 52 over Miners Creek is a concrete continuous slab carrying US 52 over Miners Creek in Clayton County, Iowa. It was built in 1974, so it is 51 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 3,340 vehicles a day, roughly 12% of them trucks, projected to reach 3,340 by 2042. The structure is 120 ft (36.6 m) long and 48 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

Location

Open in Google Maps
CarriesUS 52
CrossesMiners Creek
Location0.2 Mi. S of Jct. SR C7X
RouteU.S. Route 52
CountyClayton County
StateIowa
Coordinates42.76796, -91.09975
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating72 US tons
Inventory rating43.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span47 ft (14.3 m)
Deck width48 ft (14.5 m)
Roadway width45 ft (13.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,340 (2022)
Projected traffic3,340 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 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 52 over Miners Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is US 52 over Miners 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 January 2023.

How much traffic does US 52 over Miners Creek carry?

About 3,340 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is US 52 over Miners Creek?

The structure is 120 ft (36.6 m) long with a longest span of 47 ft (14.3 m) and a deck 48 ft wide.

Who owns US 52 over Miners Creek?

It is owned by the State Highway Agency.