US Bridges

Lrd Lake Mendota D over Spring Harbor Creek

Good

Dane County, Wisconsin · 0.2M N JCT Cth Ms · Structure no. P13074100000000

Built
1960
65 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
36 ft
1 main span
Daily traffic
1,450
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lrd Lake Mendota D over Spring Harbor Creek is a concrete culvert carrying Lrd Lake Mendota D over Spring Harbor Creek in Dane County, Wisconsin. It was built in 1960, so it is 65 years old, older than the Wisconsin average of 40.3 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 1,450 vehicles a day, projected to reach 2,009 by 2043. The structure is 36 ft (11.1 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLrd Lake Mendota D
CrossesSpring Harbor Creek
Location0.2M N JCT Cth Ms
RouteCity Street 0
Coordinates43.08053, -89.47006
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.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length36 ft (11.1 m)
Longest span34 ft (10.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,450 (2022)
Projected traffic2,009 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

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 Lake Mendota D over Spring Harbor Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Lrd Lake Mendota D over Spring Harbor 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 September 2024.

How much traffic does Lrd Lake Mendota D over Spring Harbor Creek carry?

About 1,450 vehicles per day (2022 count).

How long is Lrd Lake Mendota D over Spring Harbor Creek?

The structure is 36 ft (11.1 m) long with a longest span of 34 ft (10.4 m).

Who owns Lrd Lake Mendota D over Spring Harbor Creek?

It is owned by the City or Municipal Highway Agency.