US Bridges

Linn-Dela RD over Buffalo Creek

Fair

Linn County, Iowa · 086060401 · Structure no. 000000000222951

Built
2000
25 years old
Condition
Fair
inspected September 2024
Type
Slab
Wood or Timber
Length
120 ft
5 main spans
Daily traffic
97
2022 count
Owner
County
County Highway Agency

About this bridge

Linn-Dela RD over Buffalo Creek is a wood or timber slab carrying Linn-Dela RD over Buffalo Creek in Linn County, Iowa. It was built in 2000, so it is 25 years old, younger 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 97 vehicles a day, projected to reach 97 by 2044. The structure is 120 ft (36.6 m) long and 25 ft wide.

Location

Open in Google Maps
CarriesLinn-Dela RD
CrossesBuffalo Creek
Location086060401
RouteCounty Highway 0
CountyLinn County
StateIowa
Coordinates42.29629, -91.54115
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.3 US tons
Inventory rating63.8 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans5
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span24 ft (7.3 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic97 (2022)
Projected traffic97 by 2044
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 Linn-Dela RD over Buffalo Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Linn-Dela RD over Buffalo 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 September 2024.

How much traffic does Linn-Dela RD over Buffalo Creek carry?

About 97 vehicles per day (2022 count).

How long is Linn-Dela RD over Buffalo Creek?

The structure is 120 ft (36.6 m) long with a longest span of 24 ft (7.3 m) and a deck 25 ft wide.

Who owns Linn-Dela RD over Buffalo Creek?

It is owned by the County Highway Agency.