US Bridges

Tamm Ave S over Is 64

Fair

St. Louis city, Missouri · S 13 T 45 N R 6 E · Structure no. 32128

Built
2007
18 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
155 ft
2 main spans
Daily traffic
670
2024 count
Owner
State
State Highway Agency

About this bridge

Tamm Ave S over Is 64 is a prestressed concrete continuous stringer/multi-beam or girder carrying Tamm Ave S over Is 64 in St. Louis city, Missouri. It was built in 2007, so it is 18 years old, younger than the Missouri average of 45.1 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 670 vehicles a day, roughly 5% of them trucks, projected to reach 1,005 by 2044. The structure is 155 ft (47.2 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesTamm Ave S
CrossesIs 64
LocationS 13 T 45 N R 6 E
RouteCity Street 0
CountySt. Louis city
StateMissouri
Coordinates38.63234, -90.29363
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating49.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length155 ft (47.2 m)
Longest span76 ft (23.2 m)
Deck width52 ft (15.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic670 (2024)
Projected traffic1,005 by 2044
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Tamm Ave S over Is 64 built?

It was built in 2007, making it 18 years old in 2025.

What condition is Tamm Ave S over Is 64 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 July 2023.

How much traffic does Tamm Ave S over Is 64 carry?

About 670 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Tamm Ave S over Is 64?

The structure is 155 ft (47.2 m) long with a longest span of 76 ft (23.2 m) and a deck 52 ft wide.

Who owns Tamm Ave S over Is 64?

It is owned by the State Highway Agency.