US Bridges

Sleepy Hollow LN over Prickly Pear Creek

PoorPosted for load

Jefferson County, Montana · 3 M S Montana City · Structure no. 000000202308066

Built
2010
15 years old
Condition
Poor
inspected March 2023
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
23 ft
1 main span
Daily traffic
100
2025 count
Owner
Private
Private (other than railroad)

About this bridge

Sleepy Hollow LN over Prickly Pear Creek is a aluminum, wrought iron, or cast iron culvert carrying Sleepy Hollow LN over Prickly Pear Creek in Jefferson County, Montana. It was built in 2010, so it is 15 years old, younger than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 23 ft (7 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSleepy Hollow LN
CrossesPrickly Pear Creek
Location3 M S Montana City
RouteCounty Highway 22634
StateMontana
Coordinates46.50657, -111.95247
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating3 US tons
Inventory rating3 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadUnknown
Structure length23 ft (7 m)
Longest span23 ft (7 m)
Deck width36 ft (11 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
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

OwnerPrivate (other than railroad)
Maintained byPrivate (other than railroad)
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 Sleepy Hollow LN over Prickly Pear Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is Sleepy Hollow LN over Prickly Pear Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.

How much traffic does Sleepy Hollow LN over Prickly Pear Creek carry?

About 100 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Sleepy Hollow LN over Prickly Pear Creek?

The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m) and a deck 36 ft wide.

Who owns Sleepy Hollow LN over Prickly Pear Creek?

It is owned by the Private (other than railroad).