US Bridges

Bible Lane over Petty Creek

Good

Missoula County, Montana · 2M SE Alberton · Structure no. 000000202003721

Built
2020
5 years old
Condition
Good
inspected December 2024
Type
Channel Beam
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
3,095
2023 count
Owner
County
County Highway Agency

About this bridge

Bible Lane over Petty Creek is a prestressed concrete channel beam carrying Bible Lane over Petty Creek in Missoula County, Montana. It was built in 2020, so it is 5 years old, younger than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,095 vehicles a day, roughly 3% of them trucks, projected to reach 3,296 by 2043. The structure is 50 ft (15.2 m) long and 26 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesBible Lane
CrossesPetty Creek
Location2M SE Alberton
RouteCounty Highway 32101
CountyMissoula County
StateMontana
Coordinates46.99087, -114.44735
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59 US tons
Inventory rating38 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length50 ft (15.2 m)
Longest span47 ft (14.3 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,095 (2023)
Projected traffic3,296 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Bible Lane over Petty Creek built?

It was built in 2020, making it 5 years old in 2025.

What condition is Bible Lane over Petty 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 December 2024.

How much traffic does Bible Lane over Petty Creek carry?

About 3,095 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Bible Lane over Petty Creek?

The structure is 50 ft (15.2 m) long with a longest span of 47 ft (14.3 m) and a deck 26 ft wide.

Who owns Bible Lane over Petty Creek?

It is owned by the County Highway Agency.