US Bridges

Sylvan Ave over Coombs Creek

Good

Dallas County, Texas · 0.01 MI S of IH 30 · Structure no. 1805709S9260017

Built
1950
75 years old, rebuilt 2006
Condition
Good
inspected January 2023
Type
Frame
Concrete
Length
79 ft
1 main span
Daily traffic
8,700
2011 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sylvan Ave over Coombs Creek is a concrete frame carrying Sylvan Ave over Coombs Creek in Dallas County, Texas. It was built in 1950 and reconstructed in 2006, so it is 75 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 8,700 vehicles a day, projected to reach 12,000 by 2031. The structure is 79 ft (24.1 m) long and 161 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSylvan Ave
CrossesCoombs Creek
Location0.01 MI S of IH 30
RouteCity Street 0
CountyDallas County
StateTexas
Coordinates32.76715, -96.83567
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
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 rating36 US tons
Inventory rating27 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadUnknown
Structure length79 ft (24.1 m)
Longest span30 ft (9.1 m)
Deck width161 ft (49.1 m)
Roadway width73 ft (22.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,700 (2011)
Projected traffic12,000 by 2031
Trucks0%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$15,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Sylvan Ave over Coombs Creek built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 2006.

What condition is Sylvan Ave over Coombs Creek 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 2023.

How much traffic does Sylvan Ave over Coombs Creek carry?

About 8,700 vehicles per day (2011 count).

How long is Sylvan Ave over Coombs Creek?

The structure is 79 ft (24.1 m) long with a longest span of 30 ft (9.1 m) and a deck 161 ft wide.

Who owns Sylvan Ave over Coombs Creek?

It is owned by the City or Municipal Highway Agency.