US Bridges

Second ST over Tanyard Br

Fair

Jefferson County, Missouri · S 3 T 39 N R 4 E · Structure no. 16223

Built
1900
125 years old, rebuilt 2008
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
150
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Second ST over Tanyard Br is a steel stringer/multi-beam or girder carrying Second ST over Tanyard Br 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 5 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 150 vehicles a day, roughly 2% of them trucks, projected to reach 255 by 2043. The structure is 31 ft (9.5 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSecond ST
CrossesTanyard Br
LocationS 3 T 39 N R 4 E
RouteCity Street 0
CountyJefferson County
StateMissouri
Coordinates38.13078, -90.55809
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length31 ft (9.5 m)
Longest span29 ft (8.9 m)
Deck width34 ft (10.4 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2023)
Projected traffic255 by 2043
Trucks2%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Second ST over Tanyard Br built?

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

What condition is Second ST over Tanyard Br 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 Second ST over Tanyard Br carry?

About 150 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Second ST over Tanyard Br?

The structure is 31 ft (9.5 m) long with a longest span of 29 ft (8.9 m) and a deck 34 ft wide.

Who owns Second ST over Tanyard Br?

It is owned by the City or Municipal Highway Agency.