US Bridges

N Avenue over Snake Creek

Fair

Page County, Iowa · 069372102 · Structure no. 000000000266762

Built
1986
39 years old
Condition
Fair
inspected November 2022
Type
Slab
Concrete Continuous
Length
102 ft
3 main spans
Daily traffic
110
2022 count
Owner
County
County Highway Agency

About this bridge

N Avenue over Snake Creek is a concrete continuous slab carrying N Avenue over Snake Creek in Page County, Iowa. It was built in 1986, so it is 39 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 110 vehicles a day, projected to reach 110 by 2042. The structure is 102 ft (31.1 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesN Avenue
CrossesSnake Creek
Location069372102
RouteCounty Highway 0
CountyPage County
StateIowa
Coordinates40.76079, -95.11824
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 inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.1 US tons
Inventory rating36.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length102 ft (31.1 m)
Longest span39 ft (11.9 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2022)
Projected traffic110 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N Avenue over Snake Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is N Avenue over Snake 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 November 2022.

How much traffic does N Avenue over Snake Creek carry?

About 110 vehicles per day (2022 count).

How long is N Avenue over Snake Creek?

The structure is 102 ft (31.1 m) long with a longest span of 39 ft (11.9 m) and a deck 27 ft wide.

Who owns N Avenue over Snake Creek?

It is owned by the County Highway Agency.