US Bridges

Coldstream Ave over Mccloud Run

Fair

Linn County, Iowa · 000000000 · Structure no. 000000000001360

Built
1980
45 years old
Condition
Fair
inspected April 2023
Type
Frame
Concrete Continuous
Length
68 ft
2 main spans
Daily traffic
2,650
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Coldstream Ave over Mccloud Run is a concrete continuous frame carrying Coldstream Ave over Mccloud Run in Linn County, Iowa. It was built in 1980, so it is 45 years old, younger 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 2,650 vehicles a day, projected to reach 2,650 by 2043. The structure is 68 ft (20.7 m) long and 74 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesColdstream Ave
CrossesMccloud Run
Location000000000
RouteCity Street 0
CountyLinn County
StateIowa
Coordinates42.00803, -91.67232
Functional classUrban Local

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating87 US tons
Inventory rating52.1 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span30 ft (9.1 m)
Deck width74 ft (22.5 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,650 (2021)
Projected traffic2,650 by 2043
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Coldstream Ave over Mccloud Run built?

It was built in 1980, making it 45 years old in 2025.

What condition is Coldstream Ave over Mccloud Run 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 April 2023.

How much traffic does Coldstream Ave over Mccloud Run carry?

About 2,650 vehicles per day (2021 count).

How long is Coldstream Ave over Mccloud Run?

The structure is 68 ft (20.7 m) long with a longest span of 30 ft (9.1 m) and a deck 74 ft wide.

Who owns Coldstream Ave over Mccloud Run?

It is owned by the City or Municipal Highway Agency.