US Bridges

ST Sebald RD over Stream

FairPosted for load

Clayton County, Iowa · 092062303 · Structure no. 000000000119310

Built
1939
86 years old
Condition
Fair
inspected November 2022
Type
Truss - Thru
Steel
Length
60 ft
1 main span
Daily traffic
39
2022 count
Owner
County
County Highway Agency

About this bridge

ST Sebald RD over Stream is a steel truss - thru carrying ST Sebald RD over Stream in Clayton County, Iowa. It was built in 1939, so it is 86 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. Its operating status is: posted for other load-capacity restriction.

It carries about 39 vehicles a day, projected to reach 39 by 2043. The structure is 60 ft (18.3 m) long and 19 ft wide.

Location

Open in Google Maps
CarriesST Sebald RD
CrossesStream
Location092062303
RouteCounty Highway 0
CountyClayton County
StateIowa
Coordinates42.77254, -91.52481
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.6 US tons
Inventory rating26.7 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length60 ft (18.3 m)
Longest span60 ft (18.3 m)
Deck width19 ft (5.9 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39 (2022)
Projected traffic39 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was ST Sebald RD over Stream built?

It was built in 1939, making it 86 years old in 2025.

What condition is ST Sebald RD 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 November 2022.

How much traffic does ST Sebald RD over Stream carry?

About 39 vehicles per day (2022 count).

How long is ST Sebald RD over Stream?

The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.3 m) and a deck 19 ft wide.

Who owns ST Sebald RD over Stream?

It is owned by the County Highway Agency.