US Bridges

C Ave NE over Dry Run Creek

Fair

Linn County, Iowa · C77521027 · Structure no. 000000000001541

Built
1975
50 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete Continuous
Length
174 ft
4 main spans
Daily traffic
23,000
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

C Ave NE over Dry Run Creek is a concrete continuous slab carrying C Ave NE over Dry Run Creek in Linn County, Iowa. It was built in 1975, so it is 50 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.

It carries about 23,000 vehicles a day, projected to reach 23,000 by 2043. The structure is 174 ft (53 m) long and 58 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesC Ave NE
CrossesDry Run Creek
LocationC77521027
RouteCity Street 0
CountyLinn County
StateIowa
Coordinates42.03983, -91.6386
Functional classUrban Minor Arterial

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.
Substructure7 GoodSome minor problems.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating66.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length174 ft (53 m)
Longest span49 ft (14.9 m)
Deck width58 ft (17.7 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,000 (2021)
Projected traffic23,000 by 2043
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was C Ave NE over Dry Run Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is C Ave NE over Dry Run Creek 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 C Ave NE over Dry Run Creek carry?

About 23,000 vehicles per day (2021 count).

How long is C Ave NE over Dry Run Creek?

The structure is 174 ft (53 m) long with a longest span of 49 ft (14.9 m) and a deck 58 ft wide.

Who owns C Ave NE over Dry Run Creek?

It is owned by the City or Municipal Highway Agency.