275th ST over Stream

Good

Scott County, Iowa · 080E22904 · Structure no. 000000000303321

Built: 1976; 49 years old, rebuilt 2013
Condition: Good; inspected April 2023
Type: Tee Beam; Prestressed Concrete
Length: 25 ft; 1 main span
Daily traffic: 15; 2022 count
Owner: County; County Highway Agency

About this bridge

275th ST over Stream is a prestressed concrete tee beam carrying 275th ST over Stream in Scott County, Iowa. It was built in 1976 and reconstructed in 2013, so it is 49 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 15 vehicles a day, projected to reach 15 by 2043. The structure is 25 ft (7.6 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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Carries275th ST

CrossesStream

Location080E22904

RouteCounty Highway 0

CountyScott County

StateIowa

Coordinates41.70443, -90.75956

Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	7 Good	Some minor problems.
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionApril 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 geometry6: Equal to present minimum criteria

Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is

Approach roadway alignment6: Equal to present minimum criteria

Operating rating34 US tons

Inventory rating25 US tons

Structure

Structure typeTee Beam

MaterialPrestressed Concrete

DeckConcrete, precast panels

Main spans1

Design loadH 20

Structure length25 ft (7.6 m)

Longest span24 ft (7.3 m)

Deck width26 ft (7.9 m)

Roadway width24 ft (7.3 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)

Projected traffic15 by 2043

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed3.1 mi (5 km)

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 proposedOther structural work, including hydraulic replacements

Estimated improvement cost—

NavigationNo navigation control on waterway

Frequently asked questions

When was 275th ST over Stream built?

It was built in 1976, making it 49 years old in 2025. It was reconstructed in 2013.

What condition is 275th ST over Stream 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 April 2023.

How much traffic does 275th ST over Stream carry?

About 15 vehicles per day (2022 count).

How long is 275th ST over Stream?

The structure is 25 ft (7.6 m) long with a longest span of 24 ft (7.3 m) and a deck 26 ft wide.

Who owns 275th ST over Stream?

It is owned by the County Highway Agency.