US Bridges

Sawyer RD over Sawyer Creek

Fair

Linn County, Iowa · 085060105 · Structure no. 000000000222060

Built
1925
100 years old, rebuilt 1973
Condition
Fair
inspected September 2024
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
1,100
2022 count
Owner
County
County Highway Agency

About this bridge

Sawyer RD over Sawyer Creek is a concrete continuous culvert carrying Sawyer RD over Sawyer Creek in Linn County, Iowa. It was built in 1925 and reconstructed in 1973, so it is 100 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 5 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 1,100 vehicles a day, roughly 13% of them trucks, projected to reach 1,100 by 2044. The structure is 25 ft (7.7 m) long.

CarriesSawyer RD
CrossesSawyer Creek
Location085060105
RouteCounty Highway 0
StateIowa
Coordinates42.20224, -91.49506
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating51.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length25 ft (7.7 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2022)
Projected traffic1,100 by 2044
Trucks13%
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 Sawyer RD over Sawyer Creek built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1973.

What condition is Sawyer RD over Sawyer 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 Sawyer RD over Sawyer Creek carry?

About 1,100 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is Sawyer RD over Sawyer Creek?

The structure is 25 ft (7.7 m) long with a longest span of 12 ft (3.7 m).

Who owns Sawyer RD over Sawyer Creek?

It is owned by the County Highway Agency.