US Bridges

IH 35 Nbfr over Drainage Ditch

Fair

Denton County, Texas · 2.45 MI N of US 380 · Structure no. 180610019502033

Built
1956
69 years old, rebuilt 1987
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
38 ft
5 main spans
Daily traffic
77,293
2023 count
Owner
State
State Highway Agency

About this bridge

IH 35 Nbfr over Drainage Ditch is a concrete culvert carrying IH 35 Nbfr over Drainage Ditch in Denton County, Texas. It was built in 1956 and reconstructed in 1987, so it is 69 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 77,293 vehicles a day, roughly 17% of them trucks, projected to reach 540 by 2033. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesIH 35 Nbfr
CrossesDrainage Ditch
Location2.45 MI N of US 380
RouteState Highway 35
CountyDenton County
StateTexas
Coordinates33.26527, -97.17746
Functional classRural Major Collector

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 inspectionFebruary 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 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
DeckNot applicable
Main spans5
Design loadOther
Structure length38 ft (11.6 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic77,293 (2023)
Projected traffic540 by 2033
Trucks17%
Lanes on structure2
Traffic directionOne-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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 35 Nbfr over Drainage Ditch built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1987.

What condition is IH 35 Nbfr over Drainage 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 February 2023.

How much traffic does IH 35 Nbfr over Drainage Ditch carry?

About 77,293 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is IH 35 Nbfr over Drainage Ditch?

The structure is 38 ft (11.6 m) long with a longest span of 6 ft (1.8 m).

Who owns IH 35 Nbfr over Drainage Ditch?

It is owned by the State Highway Agency.