US Bridges

SP 299 over Bellmead Ditch

Fair

McLennan County, Texas · 0.40 MI NE of IH 35 · Structure no. 091610016201001

Built
1932
93 years old, rebuilt 1955
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
25 ft
7 main spans
Daily traffic
3,527
2023 count
Owner
State
State Highway Agency

About this bridge

SP 299 over Bellmead Ditch is a concrete culvert carrying SP 299 over Bellmead Ditch in McLennan County, Texas. It was built in 1932 and reconstructed in 1955, so it is 93 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 3,527 vehicles a day, roughly 16% of them trucks, projected to reach 9,340 by 2033. The structure is 25 ft (7.6 m) long and 70 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSP 299
CrossesBellmead Ditch
Location0.40 MI NE of IH 35
RouteState Highway 299
CountyMcLennan County
StateTexas
Coordinates31.58211, -97.10784
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
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
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadH 15
Structure length25 ft (7.6 m)
Longest span3 ft (0.9 m)
Deck width70 ft (21.3 m)
Roadway width63 ft (19.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,527 (2023)
Projected traffic9,340 by 2033
Trucks16%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$400,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SP 299 over Bellmead Ditch built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1955.

What condition is SP 299 over Bellmead Ditch 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 SP 299 over Bellmead Ditch carry?

About 3,527 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is SP 299 over Bellmead Ditch?

The structure is 25 ft (7.6 m) long with a longest span of 3 ft (0.9 m) and a deck 70 ft wide.

Who owns SP 299 over Bellmead Ditch?

It is owned by the State Highway Agency.