US Bridges

Hawthorne Ave over Stream

Good

Bremer County, Iowa · 092132002 · Structure no. 000000000079751

Built
2022
3 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
31 ft
1 main span
Daily traffic
39
2022 count
Owner
County
County Highway Agency

About this bridge

Hawthorne Ave over Stream is a concrete stringer/multi-beam or girder carrying Hawthorne Ave over Stream in Bremer County, Iowa. It was built in 2022, so it is 3 years old, younger 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 39 vehicles a day, projected to reach 39 by 2043. The structure is 31 ft (9.4 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesHawthorne Ave
CrossesStream
Location092132002
RouteCounty Highway 0
CountyBremer County
StateIowa
Coordinates42.76502, -92.4149
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.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
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 evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating74.6 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span29 ft (8.8 m)
Deck width26 ft (7.8 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39 (2022)
Projected traffic39 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Hawthorne Ave over Stream built?

It was built in 2022, making it 3 years old in 2025.

What condition is Hawthorne Ave 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 Hawthorne Ave over Stream carry?

About 39 vehicles per day (2022 count).

How long is Hawthorne Ave over Stream?

The structure is 31 ft (9.4 m) long with a longest span of 29 ft (8.8 m) and a deck 26 ft wide.

Who owns Hawthorne Ave over Stream?

It is owned by the County Highway Agency.