US Bridges

Buffalo Valley LN over Boulder Creek

Good

Linn County, Iowa · 086052005 · Structure no. 000000000222791

Built
2022
3 years old
Condition
Good
inspected April 2023
Type
Slab
Wood or Timber
Length
47 ft
2 main spans
Daily traffic
40
2017 count
Owner
County
County Highway Agency

About this bridge

Buffalo Valley LN over Boulder Creek is a wood or timber slab carrying Buffalo Valley LN over Boulder 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 40 vehicles a day, projected to reach 40 by 2043. The structure is 47 ft (14.3 m) long and 31 ft wide.

CarriesBuffalo Valley LN
CrossesBoulder Creek
Location086052005
RouteCounty Highway 0
StateIowa
Coordinates42.24569, -91.45658
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.1 US tons
Inventory rating51.8 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length47 ft (14.3 m)
Longest span24 ft (7.2 m)
Deck width31 ft (9.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2017)
Projected traffic40 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Buffalo Valley LN over Boulder Creek built?

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

What condition is Buffalo Valley LN over Boulder 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 April 2023.

How much traffic does Buffalo Valley LN over Boulder Creek carry?

About 40 vehicles per day (2017 count).

How long is Buffalo Valley LN over Boulder Creek?

The structure is 47 ft (14.3 m) long with a longest span of 24 ft (7.2 m) and a deck 31 ft wide.

Who owns Buffalo Valley LN over Boulder Creek?

It is owned by the County Highway Agency.