US Bridges

S Griffin ST over IH 30

Fair

Dallas County, Texas · 1.1 MI SW of IH 45 · Structure no. 180570000911191

Built
1965
60 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
281 ft
4 main spans
Daily traffic
8,613
2019 count
Owner
State
State Highway Agency

About this bridge

S Griffin ST over IH 30 is a steel continuous stringer/multi-beam or girder carrying S Griffin ST over IH 30 in Dallas County, Texas. It was built in 1965, so it is 60 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 5 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 8,613 vehicles a day, projected to reach 10,343 by 2036. The structure is 281 ft (85.6 m) long and 106 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesS Griffin ST
CrossesIH 30
Location1.1 MI SW of IH 45
RouteCity Street 0
CountyDallas County
StateTexas
Coordinates32.77243, -96.79821
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length281 ft (85.6 m)
Longest span70 ft (21.3 m)
Deck width106 ft (32.2 m)
Roadway width77 ft (23.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,613 (2019)
Projected traffic10,343 by 2036
Trucks0%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$54,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was S Griffin ST over IH 30 built?

It was built in 1965, making it 60 years old in 2025.

What condition is S Griffin ST over IH 30 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 2024.

How much traffic does S Griffin ST over IH 30 carry?

About 8,613 vehicles per day (2019 count).

How long is S Griffin ST over IH 30?

The structure is 281 ft (85.6 m) long with a longest span of 70 ft (21.3 m) and a deck 106 ft wide.

Who owns S Griffin ST over IH 30?

It is owned by the State Highway Agency.