US Bridges

Lake Avalon RD over Br of ST Francis R

Fair

St. Francois County, Missouri · S 16 T 35 N R 4 E · Structure no. 19030

Built
1925
100 years old, rebuilt 1986
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
3 main spans
Daily traffic
40
2023 count
Owner
County
County Highway Agency

About this bridge

Lake Avalon RD over Br of ST Francis R is a steel stringer/multi-beam or girder carrying Lake Avalon RD over Br of ST Francis R in St. Francois County, Missouri. It was built in 1925 and reconstructed in 1986, so it is 100 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 40 vehicles a day, roughly 10% of them trucks, projected to reach 60 by 2043. The structure is 60 ft (18.3 m) long and 16 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesLake Avalon RD
CrossesBr of ST Francis R
LocationS 16 T 35 N R 4 E
RouteCounty Highway 208
CountySt. Francois County
StateMissouri
Coordinates37.74134, -90.59813
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
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 geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68.5 US tons
Inventory rating49.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length60 ft (18.3 m)
Longest span20 ft (6.1 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2023)
Projected traffic60 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Lake Avalon RD over Br of ST Francis R built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1986.

What condition is Lake Avalon RD over Br of ST Francis R 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 December 2024.

How much traffic does Lake Avalon RD over Br of ST Francis R carry?

About 40 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Lake Avalon RD over Br of ST Francis R?

The structure is 60 ft (18.3 m) long with a longest span of 20 ft (6.1 m) and a deck 16 ft wide.

Who owns Lake Avalon RD over Br of ST Francis R?

It is owned by the County Highway Agency.