Division 9 — Planning and Development›Chapter 1 — SUBDIVISIONS
Ukiah Municipal Code Art. 5 Standards for Street Improvement
Ukiah Municipal Code · 2026-10 edition · updated 2026-10-22 · Ukiah
Cite as: Ukiah Municipal Code Article 5 · Text as of 2026-10-22
§ 8070. Standard Specifications and Design.¶
All streets in subdivisions shall be constructed strictly in accordance with the "Standard Specifications" and shall be designed to meet the minimum standards set forth in this Article.
(Ord. 533, § 4.11, adopted 1958)
§ 8071. Maximum Length of Minor Streets.¶
Minor streets shall have a maximum length of one thousand five hundred feet (1,500') in Types I and II subdivisions and a maximum length of three thousand feet (3,000') in Types III, IV and V subdivisions. A street in excess of the lengths mentioned herein, although meeting all other requirements of a minor street, shall be required to meet the standards of a secondary street.
(Ord. 533, § 4.12, adopted 1958)
§ 8072. Maximum Length and Radius of Cul-De-Sac Streets.¶
The maximum length of a cul-de-sac street shall be three hundred feet (300'), excepting that a cul-de-sac street of up to four hundred feet (400') in length may be permitted, provided it has a frontage of no more than fourteen (14) lots. The minimum radius of the turnaround at the end of the cul-de-sac street shall be forty feet (40') at the property line.
(Ord. 533, § 4.13, adopted 1958)
§ 8073. Maximum Length of Loop Streets.¶
The maximum length of a loop street shall be seven hundred fifty feet (750'). A loop street over this length, although otherwise meeting the definition of a loop street, shall be required to conform to the standards of a minor street in its subdivision type; provided, however, that a loop street of up to one thousand feet (1,000') in length may be permitted provided it has frontage of no more than twenty four (24) building lots.
(Ord. 533, § 4.14, adopted 1958)
§ 8074. Design Standards for Major Streets in All Subdivisions.¶
Major streets in all subdivisions shall be constructed according to the following design standards:
| Minimum right of way width, 80 feet; |
|---|
| Pavement width, 64 feet or two 32 feet; |
| Four (4) driving lanes, minimum width of each, 12 feet; |
| Two (2) parking lanes, minimum width of each, 8 feet; |
| Curb and gutter, 6 inches vertical; |
| Sidewalks, both sides, width 5 feet. |
(Ord. 533, § 4.15, adopted 1958)
§ 8075. Design Standards for Secondary Streets in All Subdivisions.¶
Secondary streets in all subdivisions shall be constructed according to the following design standards:
| Minimum right of way width, 60 feet; |
|---|
| Pavement width, 40 feet or two 20 feet; |
| Two driving lanes, minimum width of each, 12 feet; |
| Two parking lanes, minimum width of each, 8 feet; |
| Curb and gutter, 6 inches vertical |
| Sidewalks, both sides, width 5 feet. |
(Ord. 533, § 4.15, adopted 1958)
§ 8076. Design Standards for Minor, Cul-De-Sac and Loop Streets in Type I Subdivisions.¶
Minor, cul-de-sac and loop streets in Type I subdivisions shall be constructed according to the following design standards:
| Minimum right of way width, 50 feet; |
|---|
| Pavement width, 38 feet; |
| Curb and gutter, 6 inches vertical; |
| Sidewalks, both sides, width 4 feet; |
| Cross slope, maximum permissible 15%. |
(Ord. 533, § 4.16, adopted 1958)
§ 8077. Design Standards for Minor, Cul-De-Sac and Loop Streets in Type II Subdivisions.¶
Minor, cul-de-sac and loop streets in Type II subdivisions shall be constructed according to the following design standards:
| Minimum right of way width, 50 feet; |
|---|
| Pavement width, 28 feet; |
| Curb and gutter, 6 inches vertical |
| Sidewalks, both sides, width 4 feet; |
| Cross slope, maximum permissible 40%. |
(Ord. 533, § 4.16, adopted 1958)
§ 8078. Design Standards for Minor, Cul-De-Sac and Loop Streets in Type III Subdivisions.¶
Minor, cul-de-sac and loop streets in Type III subdivisions shall be constructed according to the following design standards:
| Minimum right of way width, 50 feet; |
|---|
| Pavement width, 26 feet; |
| Curb and gutter, 6 inches vertical; |
| Sidewalks, where required, width 4 feet; |
| Cross slope, maximum permissible 40%. |
(Ord. 533, § 4.16, adopted 1958)
§ 8079. Design Standards for Minor, Cul-De-Sac and Loop Streets in Type IV Subdivisions.¶
Minor, cul-de-sac and loop streets in Type IV subdivisions shall be constructed according to the following design standards:
| Minimum right of way width, 50 feet; |
|---|
| Pavement width, 24 feet; |
| Curb and gutter, where required, 6 inches vertical; |
| Sidewalks, where required, width 4 feet; |
| Cross slopes, maximum permissible 40% or greater with approval. |
(Ord. 533, § 4.16, adopted 1958)
§ 8080. Design Standards for Minor, Cul-De-Sac and Loop Streets in Type V Subdivisions.¶
Minor, cul-de-sac and loop streets in Type V subdivisions shall be constructed according to the following design standards:
| Minimum right of way width, 50 feet, except that cul-de-sac and loop streets may have minimum right of way width of 40 feet; |
|---|
| Pavement width, 20 feet with parking prohibited on both sides of such streets at all times; |
| Curb and gutter, where required, width 6 inches vertical; |
| Sidewalks, where required, width 4 feet; |
| Cross slope, maximum permissible 40% or greater with approval. |
(Ord. 533, § 4.16, adopted 1958)
§ 8081. Design Standards for Minor, Cul-De-Sac and Loop Streets in Type VI Subdivisions.¶
Minor, cul-de-sac and loop streets in Type VI subdivisions shall be constructed according to the same design standards as are required for such streets in Type I subdivisions.
(Ord. 561, § 2, adopted 1964)
§ 8082. Intersections.¶
All intersections of streets in all subdivisions shall be as nearly right angles as possible.
(Ord. 533, § 4.17, adopted 1958)
§ 8083. Alignment.¶
The alignment of all major and secondary streets shall conform to those designated on any plan of major streets adopted by the City Council prior to the date of filing of the tentative map with the City Engineer. All proposed minor streets shall be in alignment with existing or plotted streets to which they are to connect.
(Ord. 533, § 4.18, adopted 1958)
§ 8084. Grades.¶
No grade shall exceed fifteen percent (15%) and all grades shall be approved by the City Engineer.
(Ord. 533, § 4.19, adopted 1958)
§ 8085. Visibility.¶
Clear visibility for three hundred feet (300') on major streets, two hundred feet (200') on secondary streets and one hundred feet (100') on minor streets shall be provided.
(Ord. 533, § 4.21, adopted 1958)
§ 8086. Street Names.¶
Proposed street names shall not duplicate or too closely approximate phonetically the names of any street in the City or the adjacent unincorporated area. Where streets are continuations of existing streets, the existing names shall be used.
(Ord. 533, § 4.22, adopted 1958)
§ 8087. Street Signs.¶
The subdivider shall erect not less than two (2) street name signs at each intersection in accordance with the "Standard Specifications".
(Ord. 533, § 4.23, adopted 1958)
§ 8088. Lighting.¶
All lighting along all streets in all subdivisions shall be standard except that on minor, cul-de-sac and loop streets in Types IV and V subdivisions, the lighting shall be reduced at intersections.
(Ord. 533, § 4.15, 4.16, adopted 1958)
§ 8089. Construction Standards for Streets.¶
All streets in all subdivisions shall be constructed according to the following standards of construction:
A. Subgrade shall be natural soil scarified a minimum depth of six inches (6") recompacted to ninety five percent (95%) of maximum density at optimum moisture, except that clay soil may be required by the City Engineer to be removed.
B. Base course shall be stabilized aggregate to a thickness as required by the "CBR" method of design for a wheel load of twelve thousand (12,000) pounds.
C. Prime coat shall be twenty five hundredths (0.25) gallons S.C.I. per square yard.
D. Surface shall be two inches (2") A.C. plant mix.
(Ord. 533, § 4.24, adopted 1958; amd. by Ord. 561, § 2, adopted 1964)
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