US Bridges

S Howie ST over Reeders Alley 001

FairPosted for load

Lewis and Clark County, Montana · Helena-Reeders Alley · Structure no. M25058000+00101

Built
1881
144 years old, rebuilt 1974
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
93 ft
4 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

S Howie ST over Reeders Alley 001 is a wood or timber stringer/multi-beam or girder carrying S Howie ST over Reeders Alley 001 in Lewis and Clark County, Montana. It was built in 1881 and reconstructed in 1974, so it is 144 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. 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 93 ft (28.4 m) long and 22 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesS Howie ST
CrossesReeders Alley 001
LocationHelena-Reeders Alley
RouteCity Street 2738
CountyLewis and Clark County
StateMontana
Coordinates46.5857, -112.04473
Functional classUrban 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.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating15 US tons
Inventory rating11 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadH 10
Structure length93 ft (28.4 m)
Longest span24 ft (7.4 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$183,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was S Howie ST over Reeders Alley 001 built?

It was built in 1881, making it 144 years old in 2025. It was reconstructed in 1974.

What condition is S Howie ST over Reeders Alley 001 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 March 2024.

How much traffic does S Howie ST over Reeders Alley 001 carry?

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

How long is S Howie ST over Reeders Alley 001?

The structure is 93 ft (28.4 m) long with a longest span of 24 ft (7.4 m) and a deck 22 ft wide.

Who owns S Howie ST over Reeders Alley 001?

It is owned by the County Highway Agency.