US Bridges

Local over N Lizard Creek Dd #171

Fair

Pocahontas County, Iowa · 091311502 · Structure no. 000000000278481

Built
1975
50 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
115 ft
3 main spans
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

Local over N Lizard Creek Dd #171 is a concrete continuous slab carrying Local over N Lizard Creek Dd #171 in Pocahontas County, Iowa. It was built in 1975, so it is 50 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 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 11 vehicles a day, projected to reach 11 by 2044. The structure is 115 ft (35.1 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLocal
CrossesN Lizard Creek Dd #171
Location091311502
RouteCounty Highway 0
CountyPocahontas County
StateIowa
Coordinates42.69239, -94.50228
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 protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating54 US tons
Inventory rating31.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length115 ft (35.1 m)
Longest span44 ft (13.4 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2022)
Projected traffic11 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Local over N Lizard Creek Dd #171 built?

It was built in 1975, making it 50 years old in 2025.

What condition is Local over N Lizard Creek Dd #171 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 October 2024.

How much traffic does Local over N Lizard Creek Dd #171 carry?

About 11 vehicles per day (2022 count).

How long is Local over N Lizard Creek Dd #171?

The structure is 115 ft (35.1 m) long with a longest span of 44 ft (13.4 m) and a deck 32 ft wide.

Who owns Local over N Lizard Creek Dd #171?

It is owned by the County Highway Agency.