US Bridges

Mo 30 E over Sunset Hill CR

Fair

St. Louis County, Missouri · S 373 T 44 N R 5 E · Structure no. 1694

Built
1968
57 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
44,242
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 30 E over Sunset Hill CR is a concrete culvert carrying Mo 30 E over Sunset Hill CR in St. Louis County, Missouri. It was built in 1968, so it is 57 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 44,242 vehicles a day, roughly 4% of them trucks, projected to reach 55,303 by 2044. The structure is 20 ft (6.2 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMo 30 E
CrossesSunset Hill CR
LocationS 373 T 44 N R 5 E
RouteState Highway 30
CountySt. Louis County
StateMissouri
Coordinates38.51696, -90.42596
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.2 US tons
Inventory rating57.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length20 ft (6.2 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44,242 (2024)
Projected traffic55,303 by 2044
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Mo 30 E over Sunset Hill CR built?

It was built in 1968, making it 57 years old in 2025.

What condition is Mo 30 E over Sunset Hill 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 November 2023.

How much traffic does Mo 30 E over Sunset Hill CR carry?

About 44,242 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Mo 30 E over Sunset Hill CR?

The structure is 20 ft (6.2 m) long with a longest span of 20 ft (6.1 m).

Who owns Mo 30 E over Sunset Hill CR?

It is owned by the State Highway Agency.