US Bridges

Blow ST over Trib of Joachim CR

Fair

Jefferson County, Missouri · S 2 T 39 N R 4 E · Structure no. 16207

Built
1900
125 years old, rebuilt 2008
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
23 ft
1 main span
Daily traffic
500
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Blow ST over Trib of Joachim CR is a steel stringer/multi-beam or girder carrying Blow ST over Trib of Joachim CR in Jefferson County, Missouri. It was built in 1900 and reconstructed in 2008, so it is 125 years old, older 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 500 vehicles a day, roughly 2% of them trucks, projected to reach 850 by 2043. The structure is 23 ft (7 m) long and 33 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesBlow ST
CrossesTrib of Joachim CR
LocationS 2 T 39 N R 4 E
RouteCity Street 0
CountyJefferson County
StateMissouri
Coordinates38.13365, -90.55136
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating88.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length23 ft (7 m)
Longest span21 ft (6.4 m)
Deck width33 ft (10.1 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2023)
Projected traffic850 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Blow ST over Trib of Joachim CR built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 2008.

What condition is Blow ST over Trib of Joachim CR 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 2023.

How much traffic does Blow ST over Trib of Joachim CR carry?

About 500 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Blow ST over Trib of Joachim CR?

The structure is 23 ft (7 m) long with a longest span of 21 ft (6.4 m) and a deck 33 ft wide.

Who owns Blow ST over Trib of Joachim CR?

It is owned by the City or Municipal Highway Agency.