US Bridges

North 3rd ST over Buffalo Creek

Good

Linn County, Iowa · 086060310 · Structure no. 000000000002431

Built
2022
3 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
232 ft
2 main spans
Daily traffic
210
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

North 3rd ST over Buffalo Creek is a steel continuous stringer/multi-beam or girder carrying North 3rd ST over Buffalo Creek in Linn 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 210 vehicles a day, projected to reach 210 by 2043. The structure is 232 ft (70.7 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNorth 3rd ST
CrossesBuffalo Creek
Location086060310
RouteCity Street 0
CountyLinn County
StateIowa
Coordinates42.28472, -91.52774
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length232 ft (70.7 m)
Longest span115 ft (35.1 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2021)
Projected traffic210 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

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 North 3rd ST over Buffalo Creek built?

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

What condition is North 3rd ST over Buffalo Creek 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 March 2023.

How much traffic does North 3rd ST over Buffalo Creek carry?

About 210 vehicles per day (2021 count).

How long is North 3rd ST over Buffalo Creek?

The structure is 232 ft (70.7 m) long with a longest span of 115 ft (35.1 m) and a deck 33 ft wide.

Who owns North 3rd ST over Buffalo Creek?

It is owned by the City or Municipal Highway Agency.