US Bridges

Lrd Henry Ave over Rock River

Fair

Rock County, Wisconsin · 0.1M W JCT Ush 51 · Structure no. B53000100000000

Built
1956
69 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
556 ft
8 main spans
Daily traffic
11,400
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lrd Henry Ave over Rock River is a steel continuous stringer/multi-beam or girder carrying Lrd Henry Ave over Rock River in Rock County, Wisconsin. It was built in 1956, so it is 69 years old, older than the Wisconsin average of 40.3 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 11,400 vehicles a day, projected to reach 16,010 by 2043. The structure is 556 ft (169.5 m) long and 75 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesLrd Henry Ave
CrossesRock River
Location0.1M W JCT Ush 51
RouteCity Street 0
CountyRock County
StateWisconsin
Coordinates42.51978, -89.03724
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadH 20
Structure length556 ft (169.5 m)
Longest span69 ft (21.1 m)
Deck width75 ft (22.9 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,400 (2022)
Projected traffic16,010 by 2043
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed2.5 mi (4 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lrd Henry Ave over Rock River built?

It was built in 1956, making it 69 years old in 2025.

What condition is Lrd Henry Ave over Rock River 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 August 2024.

How much traffic does Lrd Henry Ave over Rock River carry?

About 11,400 vehicles per day (2022 count).

How long is Lrd Henry Ave over Rock River?

The structure is 556 ft (169.5 m) long with a longest span of 69 ft (21.1 m) and a deck 75 ft wide.

Who owns Lrd Henry Ave over Rock River?

It is owned by the City or Municipal Highway Agency.