US Bridges

Lrd Davidson RD over Rock River

Fair

Dodge County, Wisconsin · 0.7M W JCT Cth Mm · Structure no. P14012000000000

Built
1974
51 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete Continuous
Length
145 ft
3 main spans
Daily traffic
58
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd Davidson RD over Rock River is a concrete continuous slab carrying Lrd Davidson RD over Rock River in Dodge County, Wisconsin. It was built in 1974, so it is 51 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 58 vehicles a day, projected to reach 63 by 2043. The structure is 145 ft (44.2 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesLrd Davidson RD
CrossesRock River
Location0.7M W JCT Cth Mm
RouteCity Street 0
CountyDodge County
StateWisconsin
Coordinates43.27014, -88.57268
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating48.6 US tons
Inventory rating28.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length145 ft (44.2 m)
Longest span57 ft (17.4 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58 (2022)
Projected traffic63 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$561,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lrd Davidson RD over Rock River built?

It was built in 1974, making it 51 years old in 2025.

What condition is Lrd Davidson RD 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 May 2024.

How much traffic does Lrd Davidson RD over Rock River carry?

About 58 vehicles per day (2022 count).

How long is Lrd Davidson RD over Rock River?

The structure is 145 ft (44.2 m) long with a longest span of 57 ft (17.4 m) and a deck 32 ft wide.

Who owns Lrd Davidson RD over Rock River?

It is owned by the Town or Township Highway Agency.