US Bridges

Local RD over Suttle Creek

Fair

Allamakee County, Iowa · 096043006 · Structure no. 000000000061211

Built
1996
29 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
70
2022 count
Owner
County
County Highway Agency

About this bridge

Local RD over Suttle Creek is a prestressed concrete tee beam carrying Local RD over Suttle Creek in Allamakee County, Iowa. It was built in 1996, so it is 29 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 70 vehicles a day, projected to reach 70 by 2044. The structure is 51 ft (15.5 m) long and 24 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesLocal RD
CrossesSuttle Creek
Location096043006
RouteCounty Highway 0
StateIowa
Coordinates43.09859, -91.35667
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 alignment6: Equal to present minimum criteria
Operating rating38.6 US tons
Inventory rating29.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span51 ft (15.5 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2022)
Projected traffic70 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local RD over Suttle Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is Local RD over Suttle 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 May 2024.

How much traffic does Local RD over Suttle Creek carry?

About 70 vehicles per day (2022 count).

How long is Local RD over Suttle Creek?

The structure is 51 ft (15.5 m) long with a longest span of 51 ft (15.5 m) and a deck 24 ft wide.

Who owns Local RD over Suttle Creek?

It is owned by the County Highway Agency.