US Bridges

SR 200th Street over I-80

Good

Poweshiek County, Iowa · 2.0 Mi.W.Of JCT Iowa #21 · Structure no. 000000000046200

Built
1963
62 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
216 ft
4 main spans
Daily traffic
50
2021 count
Owner
State
State Highway Agency

About this bridge

SR 200th Street over I-80 is a prestressed concrete stringer/multi-beam or girder carrying SR 200th Street over I-80 in Poweshiek 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 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 50 vehicles a day, projected to reach 50 by 2043. The structure is 216 ft (65.8 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSR 200th Street
CrossesI-80
Location2.0 Mi.W.Of JCT Iowa #21
RouteCounty Highway 0
StateIowa
Coordinates41.69588, -92.3966
Functional classRural Minor Collector

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.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating55.1 US tons
Inventory rating18.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length216 ft (65.8 m)
Longest span65 ft (19.8 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2021)
Projected traffic50 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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 SR 200th Street over I-80 built?

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

What condition is SR 200th Street over I-80 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 June 2023.

How much traffic does SR 200th Street over I-80 carry?

About 50 vehicles per day (2021 count).

How long is SR 200th Street over I-80?

The structure is 216 ft (65.8 m) long with a longest span of 65 ft (19.8 m) and a deck 28 ft wide.

Who owns SR 200th Street over I-80?

It is owned by the State Highway Agency.