US Bridges

Liberty Drive over Snyder Creek

Good

Johnson County, Iowa · 079051900 · Structure no. 000000000504450

Built
1998
27 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
40
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Liberty Drive over Snyder Creek is a concrete culvert carrying Liberty Drive over Snyder Creek in Johnson County, Iowa. It was built in 1998, so it is 27 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 40 vehicles a day, projected to reach 40 by 2043. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLiberty Drive
CrossesSnyder Creek
Location079051900
RouteCity Street 0
CountyJohnson County
StateIowa
Coordinates41.63064, -91.48249
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2022)
Projected traffic40 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Liberty Drive over Snyder Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Liberty Drive over Snyder Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does Liberty Drive over Snyder Creek carry?

About 40 vehicles per day (2022 count).

How long is Liberty Drive over Snyder Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns Liberty Drive over Snyder Creek?

It is owned by the City or Municipal Highway Agency.