US Bridges

145th Ave over Creek

Good

Scott County, Iowa · 079E32108 · Structure no. 000000000302701

Built
2000
25 years old
Condition
Good
inspected April 2023
Type
Tee Beam
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
150
2022 count
Owner
County
County Highway Agency

About this bridge

145th Ave over Creek is a prestressed concrete tee beam carrying 145th Ave over Creek in Scott County, Iowa. It was built in 2000, so it is 25 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 150 vehicles a day, projected to reach 150 by 2043. The structure is 51 ft (15.5 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries145th Ave
CrossesCreek
Location079E32108
RouteCounty Highway 0
CountyScott County
StateIowa
Coordinates41.63403, -90.61753
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 alignment7: Better than present minimum criteria
Operating rating68.8 US tons
Inventory rating40 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span50 ft (15.2 m)
Deck width28 ft (8.4 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)
Projected traffic150 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 145th Ave over Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is 145th Ave over 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 April 2023.

How much traffic does 145th Ave over Creek carry?

About 150 vehicles per day (2022 count).

How long is 145th Ave over Creek?

The structure is 51 ft (15.5 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns 145th Ave over Creek?

It is owned by the County Highway Agency.