US Bridges

E Front ST over Rattlesnake Creek

Fair

Missoula County, Montana · Missoula-E Front ST · Structure no. U08110000+05751

Built
1932
93 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
53 ft
1 main span
Daily traffic
1,577
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

E Front ST over Rattlesnake Creek is a concrete tee beam carrying E Front ST over Rattlesnake Creek in Missoula County, Montana. It was built in 1932, so it is 93 years old, older than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 1,577 vehicles a day, projected to reach 1,656 by 2043. The structure is 53 ft (16.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesE Front ST
CrossesRattlesnake Creek
LocationMissoula-E Front ST
RouteCity Street 8134
StateMontana
Coordinates46.86848, -113.9852
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length53 ft (16.2 m)
Longest span53 ft (16.2 m)
Deck width43 ft (13.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,577 (2023)
Projected traffic1,656 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 E Front ST over Rattlesnake Creek built?

It was built in 1932, making it 93 years old in 2025.

What condition is E Front ST over Rattlesnake Creek 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 June 2024.

How much traffic does E Front ST over Rattlesnake Creek carry?

About 1,577 vehicles per day (2023 count).

How long is E Front ST over Rattlesnake Creek?

The structure is 53 ft (16.2 m) long with a longest span of 53 ft (16.2 m) and a deck 43 ft wide.

Who owns E Front ST over Rattlesnake Creek?

It is owned by the City or Municipal Highway Agency.