US Bridges

US 52 over Stream & Twin Springs RD

Fair

Winneshiek County, Iowa · 0.6 Mi. N of Jct. Ia 9 · Structure no. 000000000052550

Built
1963
62 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
376 ft
5 main spans
Daily traffic
4,230
2022 count
Owner
State
State Highway Agency

About this bridge

US 52 over Stream & Twin Springs RD is a prestressed concrete stringer/multi-beam or girder carrying US 52 over Stream & Twin Springs RD in Winneshiek County, Iowa. It was built in 1963, so it is 62 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 5 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 4,230 vehicles a day, roughly 13% of them trucks, projected to reach 4,230 by 2044. The structure is 376 ft (114.6 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesUS 52
CrossesStream & Twin Springs RD
Location0.6 Mi. N of Jct. Ia 9
RouteU.S. Route 52
CountyWinneshiek County
StateIowa
Coordinates43.29819, -91.81142
Functional classUrban Other Principal Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating87.7 US tons
Inventory rating35.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length376 ft (114.6 m)
Longest span82 ft (25 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,230 (2022)
Projected traffic4,230 by 2044
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed3.7 mi (6 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 Stream & Twin Springs RD built?

It was built in 1963, making it 62 years old in 2025.

What condition is US 52 over Stream & Twin Springs RD 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 March 2024.

How much traffic does US 52 over Stream & Twin Springs RD carry?

About 4,230 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is US 52 over Stream & Twin Springs RD?

The structure is 376 ft (114.6 m) long with a longest span of 82 ft (25 m) and a deck 36 ft wide.

Who owns US 52 over Stream & Twin Springs RD?

It is owned by the State Highway Agency.