US Bridges

Ia 7 over South Br Lizard Creek

Fair

Webster County, Iowa · 0.8 Mi. E of W JCT SR P29 · Structure no. 000000000052261

Built
1974
51 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
133 ft
3 main spans
Daily traffic
2,560
2021 count
Owner
State
State Highway Agency

About this bridge

Ia 7 over South Br Lizard Creek is a concrete continuous slab carrying Ia 7 over South Br Lizard Creek in Webster County, Iowa. It was built in 1974, so it is 51 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 2,560 vehicles a day, roughly 13% of them trucks, projected to reach 2,560 by 2043. The structure is 133 ft (40.5 m) long and 47 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesIa 7
CrossesSouth Br Lizard Creek
Location0.8 Mi. E of W JCT SR P29
RouteState Highway 7
CountyWebster County
StateIowa
Coordinates42.51666, -94.36734
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating26.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length133 ft (40.5 m)
Longest span51 ft (15.5 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,560 (2021)
Projected traffic2,560 by 2043
Trucks13%
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

OwnerState Highway Agency
Maintained byState 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 Ia 7 over South Br Lizard Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Ia 7 over South Br Lizard 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 June 2023.

How much traffic does Ia 7 over South Br Lizard Creek carry?

About 2,560 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is Ia 7 over South Br Lizard Creek?

The structure is 133 ft (40.5 m) long with a longest span of 51 ft (15.5 m) and a deck 47 ft wide.

Who owns Ia 7 over South Br Lizard Creek?

It is owned by the State Highway Agency.