US Bridges

US 63 over Stream

Fair

Poweshiek County, Iowa · 4.4 Mi. N of SR G17 · Structure no. 000000000700650

Built
1922
103 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
25 ft
1 main span
Daily traffic
1,530
2022 count
Owner
State
State Highway Agency

About this bridge

US 63 over Stream is a concrete culvert carrying US 63 over Stream in Poweshiek County, Iowa. It was built in 1922, so it is 103 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 1,530 vehicles a day, roughly 29% of them trucks, projected to reach 1,530 by 2044. The structure is 25 ft (7.5 m) long and 42 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesUS 63
CrossesStream
Location4.4 Mi. N of SR G17
RouteU.S. Route 63
StateIowa
Coordinates41.53955, -92.54463
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating19.5 US tons
Inventory rating15 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 15
Structure length25 ft (7.5 m)
Longest span25 ft (7.5 m)
Deck width42 ft (12.8 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,530 (2022)
Projected traffic1,530 by 2044
Trucks29%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 63 over Stream built?

It was built in 1922, making it 103 years old in 2025.

What condition is US 63 over Stream 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 June 2024.

How much traffic does US 63 over Stream carry?

About 1,530 vehicles per day (2022 count), of which roughly 29% are trucks.

How long is US 63 over Stream?

The structure is 25 ft (7.5 m) long with a longest span of 25 ft (7.5 m) and a deck 42 ft wide.

Who owns US 63 over Stream?

It is owned by the State Highway Agency.