2nd Avenue over Drainage

Good

Benton County, Iowa · 085102100 · Structure no. 000000000504375

Built: 1995; 30 years old
Condition: Good; inspected April 2023
Type: Arch - Deck; Concrete
Length: 26 ft; 1 main span
Daily traffic: 890; 2021 count
Owner: City; City or Municipal Highway Agency

About this bridge

2nd Avenue over Drainage is a concrete arch - deck carrying 2nd Avenue over Drainage in Benton County, Iowa. It was built in 1995, so it is 30 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 890 vehicles a day, projected to reach 890 by 2043. The structure is 26 ft (7.9 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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Carries2nd Avenue

CrossesDrainage

Location085102100

RouteCity Street 0

CountyBenton County

StateIowa

Coordinates42.15572, -92.02307

Functional classUrban Collector

Condition and inspection

Good

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

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	7 Good	Some minor problems.
Channel and channel protection	8 Very Good	No problems noted.

Last inspectionApril 2023

Inspection intervalevery 24 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 adequacy8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating48.6 US tons

Inventory rating36 US tons

Structure

Structure typeArch - Deck

MaterialConcrete

DeckConcrete, precast panels

Main spans1

Design loadHS 20

Structure length26 ft (7.9 m)

Longest span24 ft (7.3 m)

Deck width28 ft (8.5 m)

Roadway width28 ft (8.5 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic890 (2021)

Projected traffic890 by 2043

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

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—

NavigationNo navigation control on waterway

Frequently asked questions

When was 2nd Avenue over Drainage built?

It was built in 1995, making it 30 years old in 2025.

What condition is 2nd Avenue over Drainage 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 2nd Avenue over Drainage carry?

About 890 vehicles per day (2021 count).

How long is 2nd Avenue over Drainage?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 28 ft wide.

Who owns 2nd Avenue over Drainage?

It is owned by the City or Municipal Highway Agency.