US Bridges

Newell ST over Blowers Creek

Fair

Black Hawk County, Iowa · City Bridge No. 30 · Structure no. 000000000501650

Built
1978
47 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete
Length
36 ft
1 main span
Daily traffic
1,429
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Newell ST over Blowers Creek is a concrete slab carrying Newell ST over Blowers Creek in Black Hawk County, Iowa. It was built in 1978, so it is 47 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 6 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 1,429 vehicles a day, projected to reach 1,429 by 2043. The structure is 36 ft (11 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesNewell ST
CrossesBlowers Creek
LocationCity Bridge No. 30
RouteCity Street 0
CountyBlack Hawk County
StateIowa
Coordinates42.51283, -92.26976
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.9 US tons
Inventory rating31.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length36 ft (11 m)
Longest span33 ft (10.1 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,429 (2022)
Projected traffic1,429 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Newell ST over Blowers Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is Newell ST over Blowers 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 June 2023.

How much traffic does Newell ST over Blowers Creek carry?

About 1,429 vehicles per day (2022 count).

How long is Newell ST over Blowers Creek?

The structure is 36 ft (11 m) long with a longest span of 33 ft (10.1 m) and a deck 35 ft wide.

Who owns Newell ST over Blowers Creek?

It is owned by the City or Municipal Highway Agency.