US Bridges

Grand Ave over East Henry ST

Fair

Henry County, Iowa · 071061006 · Structure no. 000000000028500

Built
1967
58 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
159 ft
3 main spans
Daily traffic
6,858
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Grand Ave over East Henry ST is a prestressed concrete stringer/multi-beam or girder carrying Grand Ave over East Henry ST in Henry County, Iowa. It was built in 1967, so it is 58 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 6,858 vehicles a day, roughly 4% of them trucks, projected to reach 6,858 by 2043. The structure is 159 ft (48.5 m) long and 35 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesGrand Ave
CrossesEast Henry ST
Location071061006
RouteCity Street 0
CountyHenry County
StateIowa
Coordinates40.96706, -91.53897
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.1 US tons
Inventory rating31.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length159 ft (48.5 m)
Longest span57 ft (17.4 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,858 (2022)
Projected traffic6,858 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 Grand Ave over East Henry ST built?

It was built in 1967, making it 58 years old in 2025.

What condition is Grand Ave over East Henry ST 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 February 2023.

How much traffic does Grand Ave over East Henry ST carry?

About 6,858 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Grand Ave over East Henry ST?

The structure is 159 ft (48.5 m) long with a longest span of 57 ft (17.4 m) and a deck 35 ft wide.

Who owns Grand Ave over East Henry ST?

It is owned by the City or Municipal Highway Agency.