US Bridges

Houston Lake DR over Dam Splwy

FairClosed to traffic

Platte County, Missouri · S 24 T 51 N R 33 W · Structure no. 18929

Built
1960
65 years old, rebuilt 1994
Condition
Fair
inspected April 2018
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
104 ft
6 main spans
Daily traffic
120
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Houston Lake DR over Dam Splwy is a steel continuous stringer/multi-beam or girder carrying Houston Lake DR over Dam Splwy in Platte County, Missouri. It was built in 1960 and reconstructed in 1994, so it is 65 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. Its operating status is: closed to all traffic.

It carries about 120 vehicles a day, roughly 10% of them trucks, projected to reach 228 by 2044. The structure is 104 ft (31.7 m) long and 17 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesHouston Lake DR
CrossesDam Splwy
LocationS 24 T 51 N R 33 W
RouteCity Street 0
CountyPlatte County
StateMissouri
Coordinates39.19071, -94.61763
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2018
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour above top of footing
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry0: Immediate repair necessary to put back in service
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckWood or timber
Main spans6
Design loadOther
Structure length104 ft (31.7 m)
Longest span17 ft (5.2 m)
Deck width17 ft (5.1 m)
Roadway width11 ft (3.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2024)
Projected traffic228 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$727,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Houston Lake DR over Dam Splwy built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1994.

What condition is Houston Lake DR over Dam Splwy 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 April 2018.

How much traffic does Houston Lake DR over Dam Splwy carry?

About 120 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Houston Lake DR over Dam Splwy?

The structure is 104 ft (31.7 m) long with a longest span of 17 ft (5.2 m) and a deck 17 ft wide.

Who owns Houston Lake DR over Dam Splwy?

It is owned by the City or Municipal Highway Agency.