US Bridges

IH 635 Nbfr over Drainage Ditch

Good

Dallas County, Texas · 0.57 MI N of US 80 · Structure no. 180570237402119

Built
1971
54 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
37 ft
3 main spans
Daily traffic
2,346
2023 count
Owner
State
State Highway Agency

About this bridge

IH 635 Nbfr over Drainage Ditch is a concrete culvert carrying IH 635 Nbfr over Drainage Ditch in Dallas County, Texas. It was built in 1971, so it is 54 years old, older than the Texas average of 44.4 years.

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

It carries about 2,346 vehicles a day, roughly 10% of them trucks, projected to reach 5,050 by 2033. The structure is 37 ft (11.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 635 Nbfr
CrossesDrainage Ditch
Location0.57 MI N of US 80
RouteInterstate 635
StateTexas
Coordinates32.80066, -96.62561
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
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 spans3
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,346 (2023)
Projected traffic5,050 by 2033
Trucks10%
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 635 Nbfr over Drainage Ditch built?

It was built in 1971, making it 54 years old in 2025.

What condition is IH 635 Nbfr over Drainage Ditch 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 June 2023.

How much traffic does IH 635 Nbfr over Drainage Ditch carry?

About 2,346 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is IH 635 Nbfr over Drainage Ditch?

The structure is 37 ft (11.3 m) long with a longest span of 8 ft (2.4 m).

Who owns IH 635 Nbfr over Drainage Ditch?

It is owned by the State Highway Agency.