US Bridges

E 330 ST over Br of Thompson Rvr

Good

Harrison County, Missouri · S 13 T 66 N R 26 W · Structure no. 30664

Built
2005
20 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
30
2024 count
Owner
County
County Highway Agency

About this bridge

E 330 ST over Br of Thompson Rvr is a steel stringer/multi-beam or girder carrying E 330 ST over Br of Thompson Rvr in Harrison County, Missouri. It was built in 2005, so it is 20 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30 vehicles a day, roughly 10% of them trucks, projected to reach 35 by 2044. The structure is 60 ft (18.3 m) long and 20 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesE 330 ST
CrossesBr of Thompson Rvr
LocationS 13 T 66 N R 26 W
RouteCounty Highway 80
Coordinates40.52088, -93.79375
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25.8 US tons
Inventory rating14.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span59 ft (17.9 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2024)
Projected traffic35 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 E 330 ST over Br of Thompson Rvr built?

It was built in 2005, making it 20 years old in 2025.

What condition is E 330 ST over Br of Thompson Rvr in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does E 330 ST over Br of Thompson Rvr carry?

About 30 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is E 330 ST over Br of Thompson Rvr?

The structure is 60 ft (18.3 m) long with a longest span of 59 ft (17.9 m) and a deck 20 ft wide.

Who owns E 330 ST over Br of Thompson Rvr?

It is owned by the County Highway Agency.