US Bridges

L Avenue over Snake Creek

Poor

Page County, Iowa · 069373106 · Structure no. 000000000266831

Built
1979
46 years old
Condition
Poor
inspected November 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
136 ft
3 main spans
Daily traffic
60
2022 count
Owner
County
County Highway Agency

About this bridge

L Avenue over Snake Creek is a steel stringer/multi-beam or girder carrying L Avenue over Snake Creek in Page County, Iowa. It was built in 1979, so it is 46 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 60 vehicles a day, roughly 7% of them trucks, projected to reach 60 by 2042. The structure is 136 ft (41.5 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesL Avenue
CrossesSnake Creek
Location069373106
RouteCounty Highway 0
StateIowa
Coordinates40.72896, -95.15662
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2022
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
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating33.4 US tons
Inventory rating24.4 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans3
Design loadUnknown
Structure length136 ft (41.5 m)
Longest span52 ft (15.9 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2022)
Projected traffic60 by 2042
Trucks7%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was L Avenue over Snake Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is L Avenue over Snake Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2022.

How much traffic does L Avenue over Snake Creek carry?

About 60 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is L Avenue over Snake Creek?

The structure is 136 ft (41.5 m) long with a longest span of 52 ft (15.9 m) and a deck 24 ft wide.

Who owns L Avenue over Snake Creek?

It is owned by the County Highway Agency.